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How do you select the number of clusters needed for a cluster survey?
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How can you return the number of records from table?
select count(*) clumns from persons
Select the answer that correctly indicates the number of protons and electrons for this atom or ion CL-1?
Cl-1 has 17 protons and 18 electrons
Convert the hexadecimal number ABCDEF into binary and octal?
Start > All Programs > Accessories > Calculator In Calculator, View > Programmer. Select Hex. Type ABCDEF and then select binary. This gives this : 101010111100110111101111
What does it mean to select the traits you desire?
In genetics, it means to use genetic techniques to select the traits you want your offspring to have.
How is an ATM pin number made?
An ATM PIN (Personal Identification Number) is generated in a number of ways. Some banks allow users to change their numbers and select a number which they will remember; however normally with first issue this will be a randomly generated number and would be issued along with the card. The PIN number is normally encrypted and stored on the magnetic card (or chip) on the card. When the card is put into and ATM the ATM machine decrypts the PIN and matches it against the number entered by the user into the machine.
What is a example of cluster sampling?
Cluster sampling is a scheme which is used when sampling from the whole population would be too expensive - in terms of time or money. The sample space is divided into clusters, a random sample of clusters is selected and then every member of the population within the selected clusters is studied.For example, suppose you wanted to collect information from schools across a country and had calculated that a 5% sample was required. Rather than criss-crossing the country, you could divide the country into units: for example counties. You then select counties (your clusters) so that they cover 5% of the nation's schools. Visit each chosen county and sample all schools in it. The selection of counties would probably also need to be controlled so that urban and rural areas are properly represented.
How to write a word raised to number?
Select the number. Then select Format, font and check "Superscript".Select the number. Then select Format, font and check "Superscript".Select the number. Then select Format, font and check "Superscript".Select the number. Then select Format, font and check "Superscript".
Where can one purchase a Select number bed?
Select number beds can be purchased from the Select number store and website . They can also be purchased online on websites such as Amazon and eBay .
When do you need non-probability sampling?
There are at least two situations. Consider the situation where the population consists of a number of sub-populations (strata) such that units within a sub-population are similar to one another but there are much larger differences between units from different sub-populations. In order to ensure that the sample is representative, it may be sensible to use stratified random sampling. The sampling proportion may be a constant proportion or may even be such that the variance in each stratum is similar. The situation may also arise if the population is widely scattered geographically. Rather than expend time and money travelling all over the place, you could employ cluster sampling. Select a number of clusters of the population and then, within each cluster, carry out a census.
Will windows automatically select the best allocation unit size when formatting a floppy disk?
Yes. Windows will select the correct allocation unit size according to the disk's capacity. A 1.44 MB disk will use one sector per cluster while a 2.88 MB disk will use 2 sectors per cluster. Short of using a disk sector editor there's no way to change this, but even if you did you'd render the disk unreadable.Under Windows, all floppy disks are formatted according to the FAT12 specification. Hard disks and flash drives are typically formatted to the FAT32 or NTFS specifications. To support any other specifications besides FAT or NTFS you will need a suitable driver installed, however it's not recommended for normal use since non-standard formats are unreadable on other systems unless the appropriate driver is present on those systems.FAT is an abbreviation of File allocation Table. The number (12, 16 or 32) simly determines how many bits are used to address clusters. FAT12 is therefore a 12-bit file allocation system, and is used by Windows to format floppy disks. The sectors on a floppy disk are fixed at 512 bytes and the allocation unit size simply determines how many sectors there are per cluster. A cluster is the minimum unit of storage. As such there can only be one file per cluster but a file may occupy one or more clusters. Any unused bytes in the final cluster of a file are wasted bytes, so the smaller the cluster size the better.A 1.44 MB disk uses an allocation unit size of 1 sector per cluster which is the minimum possible. Any file that is not an exact multiple of 512 bytes will therefore waste anything from 1 to 511 bytes (inclusive) in the final cluster. A 2.88 MB disk uses 2 sectors per cluster, so files must be an exact multiple of 1024 bytes to minimise wastage. Hard disks are typically much larger than floppy disks so they not only use much larger clusters they require more bits to address them.A 12-bit addressing system can address 4096 clusters in total. However, 33 sectors are reserved so the actual number of sectors for storage can be no more than 4063. This means that you can have no more than 4063 individual files or folders on a floppy disk. However, the more sectors per cluster, the fewer files you can physically store. In reality, the limit is much lower than this. A 1.44 MB disk has an overall capacity of 1,457,664 bytes so at 512 bytes per sector, that equates to just 2847 sectors in total, 33 of which are reserved, leaving 2814 sectors for actual storage.The boot sector (sector 0) stores the basic disk geometry:Bytes 0 to 10 are ignored.Bytes 11 and 12 store the bytes per sector (512)Byte 13 stores the number of sectors per cluster (1 for 1.44 MB floppy, 2 for 2.88 MB floppy)Byte 14 and 15 store the number of reserved sectors (32)Byte 16 stores the number of FATs (2)Bytes 17 and 18 store the maximum number of root directory entriesBytes 19 and 20 store the total sector countByte 21 is ignoredBytes 22 and 23 store the number of sectors per FATBytes 24 and 25 store the sectors per trackBytes 26 and 27 store the number of headsBytes 28 to 31 are ignoredBytes 32 to 35 store the total sector count for FAT32 (0 for FAT12)Bytes 36 and 37 are ignored.Byte 38 stores the boot signatureByte 39 to 42 store volume identifierByte 43 to 53 store the volume labelByte 54 to 61 store the file system type as a character array (e.g., "FAT12", information use only)Bytes 62 and beyond are ignoredSectors 1 to 9 hold the primary FAT while 10 to 18 hold the secondary FAT. The secondary FAT provides a backup of the FAT.Sectors 19 to 32 store the root directory. Each sector can hold 16 entries of 32 bytes each. The number of entries consumed is determined by bytes 17 and 18 in the boot sector.Sector 33 marks the start of the actual data. Logically, this is cluster 0.The FAT is simply a directory of clusters. FAT entries 0 and 1 are reserved so FAT entry 2 represents logical cluster 0 (starting at physical sector 33).The root directory (which always exists) stores the root file entries, each of which holds a file's name, its timestamps (created, modified and accessed times), file size, file attributes (read-only, system, archive, hidden or directory) and the logical start cluster. Directories always have the directory attribute while files do not. Other than that both files and folders are treated exactly the same.The logical start cluster determines where the file (or directory) physically starts. However, as files are created, modified and destroyed, the files can become fragmented, so the cluster that immediately follows the start cluster needn't necessarily be the next cluster for that file. To keep track of which files are using which clusters and in which order, the FAT entry for the start cluster will point to the next cluster, and it will point to the next, and so on, thus creating a daisy chain of clusters. By de-fragging drives, you not only ensure files occupy contiguous clusters but also that the chain of FAT entries is also contiguous. This reduces head movement and thus improves performance.FAT values in the range 0xFF0 to 0xFFF are reserved. In particular, 0xFF7 is used to mark bad clusters. These are detected when the disk is formatted (unless you use quick format) or when you run a disk diagnostic program such as SCANDISK or CHKDISK. You can attempt to recover bad clusters to make them usable again but once a cluster is marked bad it's reliability is questionable at best.FAT entries in the range 0xFF8 through 0xFFF are used to mark the final cluster of a file. As mentioned previously, if the file doesn't fully occupy the final cluster the unused bytes are wasted since no two files can share the same cluster.
Example of cluster sampling?
In a cluster sample, researchers divide subjects into strata (like cities, for example), randomly select a few strata (draw the names of a few cities from a hat) and sample every subject in those strata (question everyone in that city.) A significant disadvantage is that you may select strata that completely overlook a feature relevant to your study.
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i have no clue
How do you final-approve a transaction?
Be sure to select the no further approval needed...
Is cluster sampling is a type of stratified random sampling?
No. Cluster sampling and stratifed random sampling are different, though often confused. (They may, however, be used in conjunction in some sampling designs.) Both are types of random sampling.STRATIFIED sampling involves identifying a variable that will break up your population into separate homogeneous groups (homogeneous in terms of the variable you are interested in). For example, suppose you want to know about the attitudes of kids about their future. Perhaps you have reason to believe this will change with time. If you collected a sample from high schools, you could stratify by grade, giving you 4 relatively homogeneous groups: freshmen, sophomores, juniors, seniors. Then, a common approach is to sample a similar number from each group.Sometimes, though, separating the groups isn't so clear cut. Perhaps you want to stratify based on religion. You can't tell this from looking at a person. So perhaps you collect sample data and apply strata after the fact! This can be useful, but there are some statistical techniques that require equal (or nearly) sample sizes for the strata.CLUSTER sampling involves breaking your population into fairly similarly sized groups called clusters (try googling MSE for an example). But now you want each cluster to contain a heterogeneous mix of individuals. Then, you take a random selection of these clusters and completely enumerate inside of those selected clusters. The problem with cluster sampling is that the cluster has now become your sample unit, instead of individuals which is what you probably hoped. This can be used for counting species, or just for contacting certain populations like apartment dwellers, nursing home residents, etc. The clusters could be apartment buildings in a city. So instead of taking a random sample of apartment dwellers, you would actually randomly select a few of the buildings and talk to everyone inside! Often, this is much more cost efficient. :)
How do you make a conference call at Nokia 5130c-2?
1. Call a number or receive an incoming call. 2. Select Options, and then scroll to and select New call. 3. Enter a second number or select Find to look up a number in the phonebook. 4. Select the desired contact. 5. Select Options, and then scroll to and select Conference.
What number is the chicken select meal?
7!
When was the Sleep Number bed line launched by the company Select Comfort?
Select Comfort's Sleep Number bed line was launched in the late 1980's. The Sleep Number bed's are Select Comforts signature product and they were invented by a private company, Comfortaire Corporation. Bob Walker left the company and formed Select Comfort in 1987.
