Please help with these works to enable me cross check my works for the next level

 

 

Question 1a. At the same time that heights of the boys at a High School were studied, heights of the girls
were also studied. Draw a histogram to summarize the data set that follows, which gives the heights, to the nearest inch, of 30 girls at the High School. Use intervals one unit wide centered at the whole­number
values 56, 57, . . . , 74.
57 61 63 64 65 67
57 62 63 64 65 67
58 62 63 64 65 70
58 62 64 65 66 70
60 62 64 65 66 73
Choose the correct histogram below.
A.
On horizontal axis on graph are frequency = 56 58 60 62 64 66 68 70 72 74 on vertical axis on graph are 0 2 4 6 Height (in inches) B.
On horizontal axis on graph are frequency =56 58 60 62 64 66 68 70 72 74 on vertical axis on graph are 0 2 4 6 Height (in inches)
. C. On horizontal axis on graph are frequency =56 58 60 62 64 66 68 70 72 74 on vertical axis on graph are 0 2 4 6 Height (in inches) Question1. Find the mean, median, and mode for the following distribution.2, 6, 2, 6, 5, 8, 9, 8, 14, 11
Find the mean. Select the correct choice below and fill in any answer boxes in your choice.
.. A. The mean is (Type an integer or a decimal.) . B. There is no mean for these data.
A. Find the median is B. There is no mode for these data
A. Find the mode is Question 2. Find the range, mean, and standard deviation of the data set. set. {3, 18, 3, 8, 8, 6, 14, 12}    The range is The mean is (Type a whole number.) (Type an integer or decimal.) The standard deviation is
(Do not round until the final answer. Then round to two decimal places as needed.) Question 3. Suppose for a given month, the mean daily closing price for stock A was 138.82 and the standard deviation was 13.6. For stock B, the mean daily closing price was 71.76 with a standard deviation of 8.1. Which stock was more volatile? Stocks with greater coefficients of variation are considered more volatile.
Which stock was more volatile? Stock A or stock B                                 Question 4.
This course discussed a variety of concepts and formulas which include interest, area, counting,
probability, and statistical formulas. Select one formula and explain how or why that formula
would be used in a real-life situation. Next, give an example with your own numbers, and solve
the formula. Discuss what your answer means.

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