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Statistics
Statistics deals with collecting, organizing, and interpreting numerical data. An important aspect of statistics is the analysis of population characteristics inferred from sampling.
36,756 Questions
What graph shows change over time?
a line graph
google "graphs" to find easy ways to make computer-generated line graphs
What is a unique mode in statisics?
The mode is the most common answers in a data set. Sometimes there can be more than one mode so if there is a single mode it is unique. It there are two it is bimodal.
Does a 5 sided shape have 5 right angles?
No it is impossible, only quadrilaterals have all side that are equal and or all right angles, like a square or a rectangle.
What is of discrete uniform distribution?
A discrete uniform distribution assigns the same probability to two or more possible events. For example, there is a discrete uniform distribution associated with flipping a coin: 'heads' is assigned a probability of 1/2 as is the event 'tails'. (Note that the probabilities are equal or 'uniform'.) There is also a discrete uniform distribution associated with tossing a die in that there is a 1/6 probability for seeing each possible side of the die.
Does the graph have no use or value if it shows no identifiable trends?
no it still identifies highs and lows
What percentage of car accidents were caused by cell phone in 2011?
There are no firm figures, only estimates. No one wants to admit using a cellphone while in a collision, it is only when they are actually observed by witnesses that it can be confirmed that they were using one.
Add'l: In some instances attorneys, and insurance companies have subpoeaned the cellphone records of the 'driver at fault' to prove that they were on the phone at the time of the collision.
There are: 7C6 = 7
Are crime rates descriptive explanatory inferential or exploratory?
Crime rates are typically considered descriptive statistics, as they summarize and provide information about the frequency of crimes within a specific population or area over a given time period. They help to convey a clear picture of crime trends but do not inherently explain the causes or relationships behind those trends. However, when used in conjunction with other data and analyses, they can also contribute to inferential or explanatory studies that explore underlying factors affecting crime rates.
Quantitative variables can be separated into what two types?
nominal and ordinal is wrong; those are the two types of qualitative variables. Ratio and interval are the two types of quantitative variables.
What is the elevation of the gulf of California?
Am I missing something here? The Gulf of California is an arm of the Pacific Ocean, wouldn't it by definition be at sea level?
What are the two types of variables and how do they differ?
The two types of variables are: independent variables and dependent variables.
Independent variables are variables (ideally only one or very few per experiment) that the experimenter manipulates in the experiment. For example, if you were testing the effect of temperature on plant growth rates, you would likely have similar plants in similar conditions but in areas with different temperatures. The experimenter is changing the temperature between the groups of plants, so the temperature would be the independent variable.
The dependent variables are the effects the independent variable has on the experimental subjects. They are changes not being directly controlled or manipulated by the experimenter. In the above temperature vs. plant growth example, the rate of plant growth would be the dependent variable; it depends on the temperature.
Carmen has fifty-four marbles aThird of them r blue How many of the marbles are not blue?
yes, it is 18
Difference between qualitative and quantitative observations?
Qualitative usually refers to the quality of the work, how good, or bad, the work is.
Quantitative refers to the amount, or quantity, of the work.
What is cumulative preference share?
preference shares has the preferred right to get profit or dividend from profit of the company every year. If company not pay the profit in any year even then in cummulative preference shares case profit for that year keep continues to add until it is paid on the other hand in case of non-cummulative preference shares if company not declare profit distribution for any year it will not add to next period.
What is the chance that that 2 flipped coins both come up heads?
The probability that 2 flipped coins both come up heads is 0.52 or 0.25
How many 3 digit combinations can be found using odd numbers 1 3 5 7 9?
There are 24 combinations using each digit only once per combination: 135 137 153 157 173 175 315 317 351 357 371 375 513 517 531 537 571 573 713 715 731 735 751 and 753.
