The histogram below gives the length of service of members of the Department of Mathematics and Statistics at a particular university. The classes, in years of service, are 0−−4.9, 5−−9.9, etc., and the vertical axis represents the number of faculty. (a) What percent of the department faculty have 20 or more years of service? Answer:  % (b) If a member of the department is chosen at random to serve on a university committee, what is the probability (in decimal form) that the chosen representitive will have between 25 and 35 years of service?

What are the odds of 1 in 50 as a percent?

Find the mean and median (in that order) for the data set: 2,5,2,8,3, a. 2,4 b. 4,2 c 3,4 d 4,3

The Bangor Humane Society tracks cat adoptions closely. They sample 54 people who looked at cats this month and find that 36 of them adopted cats. What is the sample proportion (p-bar)? Round your answer to 2 decimal places.

In 1997, in terms of population, county A ranked 9th out of 76 counties. What was its percentile rank? (Round your answer to the nearest whole number.) th percentile

Here are 11 numbers in sorted order. -49, -45, -42, -37, -35, -35, -28, -25, -25, -21, -19 What is the 75th percentile of this data?

A bag contains 4 red chips, 5 blue chips, and 3 green chips. Bobby selects two chips from the bag without replacement. What is the probability that he selects 2 blue chips? Express your answer as a percent rounded to 1 decimal place. For example x.x% or xx.x%

In 2016 the Better Business Bureau settled 84% of complaints they received in the United States. Suppose you have been hired by the Better Business Bureau to investigate the complaints they received this year involving new car dealers. You plan to select a sample of new car dealer complaints to estimate the proportion of complaints the Better Business Bureau is able to settle. Assume the population proportion of complaints settled for new car dealers is 0.84, the same as the overall proportion of complaints settled in 2016. Use the z-table. a. Suppose you select a sample of 200 complaints involving new car dealers. Show the sampling distribution of p. E(p) (to 2 decimals) (to 4 decimals) b. Based upon a sample of 200 complaints, what is the probability that the sample proportion will be within 0.04 of the population proportion (to 4 decimals)? probability : = c. Suppose you select a sample of 460 complaints involving new car dealers. Show the sampling distribution of p. E(F) (to 2…

The probability of forming a 6 letter word (sensible or non- sensible) from the letters of LIPOPOLYSACCHARIDE if the first and last letters should be H and Y, respectively is %. DECIMAL ONLY, 2 places.

An administrative assistant for the athletics department at a local university is moni- toring the GPAs for eight members of the women's volleyball team. He enters the GPAs into the database but accidentally misplaces the decimal point in the last entry. 2.8 3.0 3.0 3.3 2.4 3.4 3.0 21 Use a dotplot to describe the data and uncover the assistant's mistake.