A part of my statistics project says to do "shape, center, and spread of distributions" with the information I collected from an experiment. I think that has to do with the bell curve...

A part of my statistics project says to do "shape, center, and spread of distributions" with the information I collected from an experiment. I think that has to do with the bell curve...

People with z-scores above 2.5 on an IQ test are sometimes classified as geniuses.

Hello! I am doing a task in mathematics, about statistics and probability. This task i am struggelig with asks following: In a business there is 26...

The weight of a sperm whale’s brain is normally distributed with a mean of 15.5 pounds and a standard deviation of 3.6 pounds. What is the probability a randomly selected sperm whale will have a brain...

For the entire population of MMA fighters, the mean endurance is 30 with a standard deviation of 4.18. A distribution of the sample means is created on endurance with sample sizes of 12 and a standard...

a. A highly selective school decides that it will consider only applicants with a score in the top 5%. What will be the minimum score (cutoff point) that you must have in order to be considered for...

It is for a quiz

The variance is taken to solve it and to show the s2= |a+b| 2 I don't know why ...

standard deviation

I'm not much on higher math but would I use "n" or "N-1"

A small engine shop receives an average of 1.51 repair calls per per spur, with a standard deviation of 0.37. What is the standard deviation of the number of calls they receive during six...

The mean lifetime of a certain tire is 30,000 miles and the standard deviation is 2500 miles. If we assume nothing about the shape of the distribution, approximately what percentage of all...

The distribution of the weights of 100 students has a mean of 168lbs with a standard deviation of 16lbs. Predict the number of students who have weights between 135 and 175 pounds.

Statistics thank you please

MEAN : 6.3 MODE:6 MEDIAN:6 STUDENTS SCORES: 4,5,5,6,6,6,7,7,8,9 STANDARD DEVIATION: 1.49

how would you find the standard deviation of the net income?

country a annual exports to country b are $3.2bilion on average with standard deviation of 0.28 billion. country a annual imports to country b are $3.5 bilion on average with standard deviation...

If female blood pressure is normally distributed with a mean of 114 and standard deviation of 19.8, find p12 and p77

In a large class of 500 students, the mean and standard deviation of a final exam are 65 and 11, respectively If the grades have symmetric distribution, how many students have grades within 2...

Assume that adults have iq scores that are normally distributed with a mean of 100 and a standard deviation of 15 .