“My Excelchat expert helped me in less than 20 minutes, saving me what would have been 5 hours of work!”

I need help with frequency distribution graphs.

Solved by Z. Y. in 28 mins

I need to show a frequency distribution and a histogram for a set of 200 data. all ranging from 43-116. I have sorted it from smallest to largest and would like to class the data from 40-49,50-59,60-69,70-79,80-89,90-99,100-109, 109-110, and 110-119. How do I create the frequency distribution and histogram with this data?

Solved by O. F. in 28 mins

An F- distribution has a mean of 8.48 and a standard deviation of 2.91. Use the Chebyshev’s Theorem to find the proportion of observations you would expect to find within two standard deviations from the mean.

Solved by F. B. in 15 mins

I am trying to complete a Network diagram model on publishing and need to find the activity times using (normal distribution) PSINormal in Solver. I have the mean and the standard deviation times and these times can vary by 50% of their mean values.

Solved by K. F. in 18 mins

In cell B2, calculate the probability of selling the exact number of products calculated in cell A2, using the normal distribution function and the mean and sample standard deviation calculated in the prior step.

Solved by K. L. in 13 mins