1,004 Answered Questions for the topic Statistics Question

Statistics Question

11/13/16

stats help
The participants in a television quiz show are picked from a large pool of applicantswith approximately equal numbers of men and women. If participants are pickedrandomly, what is the probability... more
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Statistics Question

11/06/16

A card is randomly selected from a deck of 52 cards. The probability that the card is between four and eight (inclusive) or is a club.
A card is randomly selected from a deck of 52 cards. The probability that the card is between four and eight (inclusive) or is a club.
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Statistics Question Stats Statistics Method

11/03/16

The variation found among raw scores in a particular group in referred to as
The variation found among raw scores in a particular group in referred to as: a. between group variation b. Within group variation C. Total variation  d. None 
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Statistics Question

10/31/16

ANOVA statistics question
An independent-measures research study compares three treatment conditions with a sample of n = 10 in each condition. The sample means are M1 = 2, M2 = 3, and M3 = 7. a. Compute SS for the set of 3... more
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Statistics Question

10/26/16

if you know the names of the remaining six students in the spelling bee, what is the probability of randomly selecting an order and getting the order that is us
P(selecting the correct spelling bee order)
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Statistics Question Statistics

10/26/16

statistics
UCLA undergrads sllep a mean of 7 hours a night with a standard deviation of 1.5 hours. Assume sleep time is unimodal and symmetric and refer to the the empirical Rule(68% observations fall within... more
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Statistics Question Math Statistics Math Help

10/24/16

Top 10% of the class received an A on the last test...
I don't think I've worked this problem correctly. Please help, thanks!!   A teacher says that the top 10% of the class received an A on the last test. The scores were normally distributed with... more
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Statistics Question

10/23/16

Satatistics
the local police force gives all applicants an entrance exam and accepts only those applicants who score in the top 15% on this test. If the mean score this year is 87 and the standard deviation is... more
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Statistics Question

10/20/16

Statistics
Your average grade after 5 tests in Biology is a 65. However, after the most recent test your averageincreased to a 70. What grade did you get on the test in order to increase your average?
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Statistics Question

10/19/16

stats question
choose at random a young adult aged 19 to 22 years. Ask their age and where they live (with their parents, in their own place, or in some other place such as a college dormitory) here is the... more
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Statistics Question

10/19/16

Given the following information about a sample, calculate a z score for a test grade of 91. = 87, s = 4.01
 Given the following information about a sample, calculate a z score for a test grade of 91.= 87, s = 4.01
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Statistics Question Statistics Math Help Intervals

10/18/16

Mean or Proportion?!
1. Chips Ahoy wants to perform a study to determine the number of chocolate chips in their cookies. To that end, they collected a sample of 40 cookies. The mean of this sample is 23.95 chocolate... more
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Statistics Question Measurement Statistics

10/17/16

Measurement Statistics
You weighed your dog this morning on your bathroom scale. His weight was 15 lb. You decided to weigh him again in the evening, and his weight had increased to 20 lb. This is most likely what type... more
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Statistics Question Statistics Z Scores

10/17/16

Find the z-score
Suppose 12 people are asked to rate themselves in terms of their accumulated wisdom. The first 11 people, being humble, give themselves a zero. The 12th person--with gigantic arrogance--responds by... more
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Statistics Question

10/17/16

Statistics Question
Two-thirds of students have jobs to help with bills in college. If 20 students are surveyed what is the probability that half of the students will have jobs?
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10/17/16

Statistics
An urn contains 3 white marbles and 2 black marbles. Two marbles are drawn without replacement. What is the probability that the first marble drawn is white OR the second is black?
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Statistics Question Math Statistics Discrete Mathematics

10/16/16

Statistics Question
Type | Probability 1 ton | 0.25 2 tons | 0.06 5 tons | 0.01 10 tons | 0.11 20 tons | 0.57     An appliance dealer sells 5 types of air conditioners. The above gives the distribution of the... more
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Statistics Question Statistics Probability Math Help

10/16/16

Please, answer with the full solution! Thanks for the help!
Readings on a thermometer are normally distributed with a mean of 0C and a standard deviation of 1.00.What is the probability that a randomly selectedthermometer reads: • Less than 0.53.• Greater... more
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Statistics Question

10/13/16

1. You are asked whether N, N, D, N, D constitute quantitative or qualitative data. Your best reply is
a. quantitative because the letters probably refer to a count. b. qualitative because the letters probably refer to a class or a category. c. quantitative or qualitative depending on whether the... more
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Statistics Question

10/09/16

if a b c are independent events , prove A prime b prime and c prime are also independent events.......
if a b c are independent events , prove A prime b prime and c prime are also independent events.......
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Statistics Question

10/08/16

Hypergeometric Probability Distribution
The game called Lotto sponsored by the Louisiana Lottery Commission pays its largest prize when a contestant matches all 5 of the 39 possible numbers. Assume there are 39 ping-pong balls each with... more
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Statistics Question

10/07/16

In an election year, we have and will see poll results: Candidate x has a 45% positive rating, Candidate y a 53% positive rating, with 2% undecided. Possible er
In an election year, we have and will see poll results: Candidate x has a 45% positive rating, Candidate y a 53% positive rating, with 2% undecided. Possible error is 5%.What does the 5% mean in... more
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Statistics Question

10/07/16

Why must the Null Hypothesis and the Alternate Hypothesis be mutually exclusive?
In statistics: Why must the Null Hypothesis and the Alternate Hypothesis be mutually exclusive?
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Statistics Question Statistics Stats

10/05/16

statistics - normal distribution multiple choice
  The variable X is normally distributed with a mean u and a standard deviation o. Let A be a value of X. For the current values of u, o, and A it is known that P(X<A)=.4512. If the value of of... more
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Statistics Question Statistics College Math

10/04/16

Simple Stats Questions But Confused Need Help Soon *TRYING TO MAKE SICK DAD PROUD*
A survey is conducted to see which gender is more likely to shop online. Amongthe 1000 people selected, 60% of females shop online, 40% of males shop online, and 55% arefemales.1. What is the... more
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