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# Is the Poisson dis. used to determine the prob. that the next 2 students will arrive 30 min apart at a rate of 30 per hour?

Or is it an exponential distribution problem?

# what is the probability that a randomly slected pregnancy lasts less than 172 days?

The mean being 176 days and the standard deviation being 12

# 1. Find B if P=97 and R=77 7/9%. 2. Find P if R =29% and B=300

These are two different questions.

# A recipe uses 4 cups of flour to 1 1/8 cups of milk. If you have 2 cups, how much milk should you use?

I need to answer with an integer or simplified fraction

# A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90.

the scores are normally distributed,   what proportion of scores fall between 300 and 400?

# how to construct a histogram and percentage polygon

how do i do this given a set of data in excel

# how to find the true population mean or population proportion in continuous probability distribution?

create a new worksheet on excel document and create worksheet probability depending on major assignment the population mean for goals scored by FIFA soccer player

# College Women/ Mothers Height Question

Are college women are taller on average than their mothers. The results (in inches) were as follows: Pair             1 ...

# when a dime is tossed 3 times eight likely outcomes are possible. let a=event the first toss is heads, b=third toss is tails and c=event the total number is one

compute P(C/A) and are A and C independent events and why?

# find the number of weaving errors in a 20 by 10 foot rug

Find the number of weaving errors in a 20 by 10foot rug. What is the probability of finding at least 3 errors in the rug???    this is all the information given. The chapter is on...

# Why is it important to learn statistics in the study of Psychology?

Why is it important to learn statistics in the study of Psychology?

# How can I find the least-square regression line?

If I was given this data how can I find the least squares regression line:   x = 21   y= 78   sx = 1.5   sy= 0.8   r=0.81

# What is the minimum "usual" value equal beats per minute?

A certain group of tests subject had pulse rates with a mean of 77.1 beats per minute and standard deviation of 12.6 beats per minute. Would it be unusual for one of the test subjects to have a pulse...

# Find the marginal distribution of age group

Age group 15 to 19 years, 2124 Females and 1876 Males

# If a stemplot showed the following numbers of pizza pieces eaten by a contestants:

08, 17, 19, 25, 27, 29, 30, 32, 35, 37, 39, 39, 41, 42, 46, 53, 57, 63 What percent of contestants ate more than 50 pieces of pizza?

# The five number summary for the length of duration (in minutes) of a volcano eruption is 1.7, 2.3, 4.0, 4.4, 5.2.

What percent of the eruptions last longer than 2.3 minutes?