Standard deviation is a statistical tool used to determine how tight or spread out your data is. In effect, this is quantitatively calculating your precision, the reproducibility of your data points. Here's how you find it:
1). Take the average of all the data points in your set.
2). Find the deviation of each point by finding the difference between each data point and the mean.
3). Add the squares of each deviation together.
4). Divide by one less than the number of data points. If there are 20 data points, divide by 19.
5). Take the square root of this value.
6). Done.
How do you attract a guys attention when he doesn't know you?
show off what you think is awesome about you. be respectful when you do it though cuz he might see right through you when you do it but just show off your best feature or special talent or something like that!!!!
What about accidental sampling?
Accidental sampling is a type of nonprobability sampling which involves the sample being drawn from that part of the population which is close to hand. That is, a sample population selected because it is readily available and convenient. The researcher using such a sample cannot scientifically make generalizations about the total population from this sample because it would not be representative enough. For example, if the interviewer was to conduct such a survey at a shopping center early in the morning on a given day, the people that he/she could interview would be limited to those given there at that given time, which would not represent the views of other members of society in such an area, if the survey was to be conducted at different times of day and several times per week. This type of sampling is most useful for pilot testing.
Business research and decision making?
Placing a question mark at the end of a phrase does not make it a sensible question. Try to use a whole sentence to describe what it is that you want answered.
Should you discuss having children with your fiance before getting married?
Yes you should. You want to make sure your both on the right track before making a decision like marriage. if you want kids, and he doen't then this could be a huge issue to overcome in a marriage, and maybe then you should consider whether or not he is in fact who you want to marry.
The probability is 0.0072, approx.
My dad's mom had two sets of twins i am a girl what are my chances of having twins?
Twins do not run in families except those that result from hyperovulation, Only women inherit this. You will only know if you have yourself tested for this gene. Your father could have passed it to you.
Can dizygotic fraternal twins be conceived a week apart?
I think so. My twins are three days apart according to every ultrasound so far. It seems perfectly reasonable that they could be up to a week apart especially considering that is about how long strong sperms keep on working within the right environment. I am not a Dr., but my guess would be it must be possible. Take care
While it is possible for non-identical (dizygotic/2-eggs) twins to be conceived apart (and by different fathers!), it's generally not the case. An ultrasound showing twins differing in age by 3 days is not significant given the margin of error for ultrasound technology. Just like most adults are different sizes, so too are babies in utero owing to genetic and environmental factors.
Generally, yes. If you think about this question, the reasons may be obvious.
How many people in the world have a birthday on October 16?
There is no way to accurately determine the number of living people born on October 16, and the answer would change slightly almost immediately as someone was born or died.
But strictly by random probability, for a world population of 7 billion people, each of the 365 days of the year would be the birthday of 19.2 million people (Feb. 29 only 4.8 million).
Celebrities born on October 16 include:
John and Edward Grimes (Jedward) - born 1991
John Mayer (singer) - born 1977
Kellie Martin (teen actress) - born 1975
Wendy Wilson (singer, famous daughter) - born 1969
Flea (bassist Michael Balzary) - born 1962
Tim Robbins (actor) - born 1958
David Zucker (filmmaker, famous brother) - born 1947
Suzanne Somers (actress) - born 1946
Tim McCarver (sportcaster) - born 1941
Barry Corbin (character actor) - born 1940
Angela Lansbury (actress) - born 1925
Oscar Wilde, author (1854-1900)
If you pull two cards out of a deck it will a face card?
What is the probability that your birthday will fall on Saturday and Sunday?
The question is difficult to answer without detailed analysis.
In the UK, between 1979 and 2014 (after adjusting for public holidays), Sunday had the lowest number of births of any day of the week, followed by Saturday. This is partly a reflection of lower staffing of maternity services at weekends: births are not normally induced over weekends, for example. An approximate estimate for Sat and Sun is 0.26 compared to 0.29 which might be expected if births were distributed evenly across days of the week.
The pattern in other countries may be different: particularly where the weekend is not Sat-Sun.
3 purple 2 orange and 5 green what is the probability of drawing the 1st and then the 2nd of purple?
It is 1/15.
What is the probability of tossing a head and rolling an even number?
If the coin is tossed and the die rolled sufficiently many times then the probability is 1: the event is a certainty.
For just one toss and roll, the probability is 0.25
What is the probability of rolling a 6 sided die and getting a 1 or a prime?
2 out of 3. !, 2, 3 and 5 fit the criteria. That is 4 out of the 6 numbers, which simplified is 2 out of 3.
What is the highest number for probability?
A probability of one is the highest, but this cannot be achieved a statistical population. It's sort of like the speed of light, it can only be approached but never reached.
Three results are desirable and there are nine possible ones. That gives 3/9, aka 1/3, aka 33%
The worst-case scenario is that the first 24 cards you draw are 6 of each suit. In that case, the 25th card will be the seventh card in one of the suits.By the way, since we are not talking about probabilities here, but about certainties, it makes no difference whether you replace the cards or not.
What is the probability of getting a pair of kings dealt in a 5 card poker game?
It is 0.0465, approx.
If two dice are rolled what is the probability of getting a number less than or equal to 6?
Assuming the dice are cubes with numbers 1-6 on their faces, the probability that a number less than or equal to 6 is shown is 1 as each die can only show numbers less than or equal to 6.
However, if you mean the SUM of the two dice is less than or equal to 6, then:
There are 36 ways in which the two dice can fall.
The sum of the two top faces can be 2, 3, 4, 5, 6; these are achieved in
2: 1+1 → 1 way
3: 1+2; 2+1 → 2 ways
4: 1+3, 2+2, 3+1 → 3 ways
5: 1+4, 2+3, 3+2, 4+1 → 4 ways
6: 1+5, 2+4, 3+3, 4+2, 5+1 → 5 ways
→ there are 1 + 2 + 3 + 4 + 5 = 15 different ways a sum less than or equal to 6 can be displayed (on the top faces).
Probability_of_success = number_ways_of_success/total_number_of_outcomes
→ Pr(sum ≤ 6) = 15/36 = 5/12
What are the probabilities of drawing 3 non face cards in row?
It is 1: the event is a certainty if you keep drawing cards. The probability that the first three cards drawn are non-face cards, which is quite a different event from that described in the question, is approx 0.4471
If you roll the die once. What is the probability of rolling a 3.?
If the die is fair, the probability is 1/6.
What is the probability of rolling a prime number on a 6 face dice?
If the numbers are 1 to 6, there are three prime numbers in that range, a probability of 50%.
What is the probability that a random chosen family has income between 60000 and 72000?
The answer depends on the currency unit involved and the population from which the random family is selected. Within most countries, there is considerable variation in incomes between different regions.
A birthday attack is a method of code decryption which exploits the birthday paradox - that which explains that within a class of 30 students, there is an assumed probability of two sharing the same birthday of 70 percent.