1,029 Answered Questions for the topic Statistics Question

Statistics Question Statistics Distribution

03/06/15

Statistics problem about large samples and normal distribution
A researcher has collected a large sample of IQ scores from his friends and relatives. He claims that because his sample is large and the distribution of his sample scores is very close to the bell... more
Follows • 2
Expert Answers •1
Statistics Question

03/03/15

probability question
In a particular game players spin a circular spinner split into 3 unequal regions. Half of the spinner is colored orange. A quarter of the spinner is green and the remaining quarter is blue. A) if... more
Follows • 2
Expert Answers •1
Statistics Question Math Word Problem

03/01/15

true or false, For a population with a mean of 80 and a standard deviation of 10, only 2.28 percent of the scores are greater than X = 100. True
Social Statistics   
Follows • 2
Expert Answers •1
Statistics Question Statistics

03/01/15

2. The proportion to use belts). It also depends on local law. In New York city, police can stop a driver who is not belted.
2. The proportion of drivers who use seat belts depends on things like age (young people are more likely to go unbelted) and gender (women are more likely to use belts). It also depends on local... more
Follows • 1
Expert Answers •1
Statistics Question

02/25/15

Chi Square
At a school pep rally, a group of sophomore students organized a free raffle for prizes. They claim that they put the names of all of the students in the school in the basket and that they randomly... more
Follows • 2
Expert Answers •1
Statistics Question

02/24/15

Approximately 2.5% of the bags collected would contain more than ___ Pints?
After a blood drive, the volumes of 440 bags of blood are measured. They are found to have a mean volume of 1 pint within standard deviation of 0.05. Approximately 2.5% of the bags collected would... more
Follows • 2
Expert Answers •1
Statistics Question

02/22/15

probability
tossing heads in a coin toss and rolling a 6 on a die independent or dependent event  
Follows • 2
Expert Answers •1
Statistics Question

02/22/15

Estimate the median and standard deviation for the salaries of employees of a certain company summarized below:
Salary ($)                       Employees 5,001 - 10,000                         16 10,001 - 15,000                       15 15,001 - 20,000                       11 20,001 - 25,000          ... more
Follows • 1
Expert Answers •1
Statistics Question Z Score And Probability

02/21/15

z score and probability
suppose a bell shaped distribution, with a mean of 70 mph and a std dev of 8 mph. Calculate the Z score for someone traveling 95 mph. Is it likely to see someone going this fast? We must use Excel... more
Follows • 2
Expert Answers •1
Statistics Question Statistics Stats Normal Distribution

02/21/15

Three complicated statistics (Normal Distribution) questions
1) The lengths in minutes of feature films for the current year follow a normal distribution with a mean of 109 minutes and a standard deviation of 12 minutes. What percentage of feature films in... more
Follows • 2
Expert Answers •1
Statistics Question Statistics Probability Word Problem

02/21/15

Stats word probability problem
If possible, please assist me with the formula and finding the answer please!   In a simple game, a six-sided die is rolled 4 times. If all four rolls result in either 1 or 2, then the player... more
Follows • 2
Expert Answers •1
Statistics Question

02/18/15

Statistics, Confidence Intervals.
A soft drink manufacturer wishes to know how many soft drinks males over age 26 drink in a week. Their consultant thinks that the mean is 4.3 soft drinks per week. Assume a previous study found the... more
Follows • 1
Expert Answers •1
Statistics Question

02/12/15

If we take out an SRS of n=500 individuals from a population and 25% of them are Hispanic. How many Hispanics can you expect from a sample?
If we take out an SRS of n=500 individuals from a population and 25% of them are Hispanic. How many Hispanics can you expect from a sample?
Follows • 2
Expert Answers •1
Statistics Question

02/08/15

must construct a frequency distribution, relative frequency distribution, frequency histograms of a data, relative frequency histogram of the data, describe the
  4.2, 8.6, 9.2, 9.6, 9.6, 9.7, 10.2, 10.5, 10.6, 10.6, 10.9, 10.9, 11.3, 11.4, 11.6, 12.3, 12.6, 13.0, 13.3, 13.4, 13.9, 14.0, 14.3, 14.7, 14.8, 15.5, 15.9, 15.9, 16.1, 16.1, 16.1, 16.2, 17.8,... more
Follows • 1
Expert Answers •1
Statistics Question

02/07/15

22% committed crimes, 28% attended college, and 56% did neither.
What percent of people in the study who went to college also committed crimes?
Follows • 2
Expert Answers •1
Statistics Question

02/07/15

22% committed crimes, 28% attended college, and 56% did neither.
What percent of people in the study both committed a crime and attended college?
Follows • 2
Expert Answers •1
Statistics Question

02/07/15

Consider the following list of pizza toppings: Mushrooms, olives, peppers, pepperoni, sausage, onions, and pineapples
1. How many different kinds of pizza can you order?   2. How many different kinds of pizza with only one topping can you order?   3. How many different kinds of pizza with at least one topping... more
Follows • 1
Expert Answers •1
Statistics Question

02/06/15

Additional Info Provided: Suppose 750 students are admitted. What is the chance that the class size will be at least 720 students?
Hello, I'm really struggling with how to approach this problem. Thank you for any advice.   *Edited Original Question*    Sorry.....you are absolutely correct in that I didn't provide enough... more
Follows • 2
Expert Answers •1
Statistics Question

02/05/15

In two major golf tournaments one professional golfer finished second and ninth, while another finished sixth & fifth.
Comment on the argument that since 2+9=6+5, the overall performance of the two golfers in these two tournaments was equally good
Follows • 2
Expert Answers •1
Statistics Question

02/05/15

If all the values in a set are increased by 10, does the range also increase by 10,? explain?
Statistics question pls explain me 
Follows • 2
Expert Answers •1
Statistics Question

02/05/15

if the value for the median of a set is not found in the data set what must be true about the data set?
It's statistics question  pls help me 
Follows • 2
Expert Answers •1
Statistics Question

02/04/15

Stats word problem
4. The probability that an adult male is shorter than 66 inches is 0.3; that he is between 66 and 70 inches is 0.5; and that he is taller than 70 inches is 0.2. If two males are picked at random,... more
Follows • 2
Expert Answers •1
Statistics Question

02/04/15

Stats word problem
3. The probability that a person picked at random is over 65 years old is 0.12. If two people are picked at random, find the probability that: a. they are both over 65b. neither is over 65c. at... more
Follows • 1
Expert Answers •1
Statistics Question

02/04/15

Stats word problem
2. A fair die is rolled twice. Find the probability of the following.a. rolling a sum of 10 on the two rollsb. rolling a sum not equal to 5 on the two rollsc. rolling a 2 first, then a 6d. rolling... more
Follows • 2
Expert Answers •1
Statistics Question

02/04/15

Stats work problem
1. Four hundred people attending a party are each given a number, 1 to 400, for a door-prize drawing. One number is drawn at random to determine the winner. Find the probability that the number... more
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.