Midrange, first quartile, mean, standard deviation

Sixteen retail outlets were surveyed to find the cost of a window chiller. The results are 280,310,265,298,285,325,360,340,260,275,295,280,355,295 and 355.
find the midrange
find the value corresponding to P50
find the first quartile (in dollars)
find the mean
find the unbiased standard deviation
what is th z-score, correct to the nearest hundredth, of the data entry 260

For a particular sample of 50 test scores on a psychology exam, the following results were obtained.
Mean- 78, Midrange- 72, Third quartile-94, Mode-84, Median-80, standarddeviation-11, range-52, first quartile-68
What score was earned by more students than any other score and why ? ( 84 ? because it is the score that occurs

For a particular sample of 50 scores on a psychology exam, the following results were obtained.
First quartile = 67 Third quartile = 91 Standarddeviation = 9 Range = 48
Mean = 75 Median = 80 Mode = 81 Midrange = 74
a)What score was earned by more students than any other score? Why?
b)How many students scored b

2. A math test was given with the following results:
80, 69, 92, 75, 88, 37, 98, 92, 90, 81, 32, 50, 59, 66, 67, 66
Find the range, standarddeviation, and variance for the scores.
3. For a particular sample of 50 scores on a psychology exam, the following results were obtained.
Mean = 78 Midrange = 72 Third quartile = 94

For a particular sample of 77 scores on a psychology exam, the following results were obtained.
First quartile = 44 Third quartile = 71 Standarddeviation = 6 Range = 45
Mean = 64 Median = 57 Mode = 92 Midrange = 60
I. What score was earned by more students than any other score? Why?
II. What was the highest score

The number of dry cleaning orders picked up at Sunny Fresh Dry Cleaners was sampled over 4 hour periods. Below is the sample:
61 58 67 52 25 64 38 49 51 61 58 61 27 61 58 34
From this data set, compute the sample mean, median, mode and midrange. Compute the 1st quartile and 3rd and

I have do answer the questions below, using different numbers can u answer them with those number so that I can answer mine. Please elaborate on the last set of questions, the begining questions 1-11 I understand, but I still need you to answer. so that can can make sure I'm doing this right
Given the following set of data

A study is run to estimate the mean total cholesterol level in children 2- 6 years of age. A sample of 9 participants is selected and their total cholesterol levels are measures as follows: 185,180,225,240,194,147,196,175 and 223.
a. Compute the sample mean
b. Compute the sample standarddeviation
c. Compute the median
d.

W2A3 Sample questions
1. For a particular sample of 63 scores on a psychology exam, the following results were obtained.
First quartile = 57 Third quartile = 72 Standarddeviation = 9 Range = 52
Mean = 72 Median = 68 Mode = 70 Midrange = 57
Answer each of the following:
I. What score was earned by more stude