1. For IQ scores of students, state whether you would expect a histogram of the
ID: 3180429 • Letter: 1
Question
1. For IQ scores of students, state whether you would expect a histogram of the data to be bell-shaped, uniform, skewed left, or skewed right?
2. Determine the original set of data.
1
0
1
3
2
1
4
4
7
8
3
3
5
5
5
7
9
4
0
1
Legend: 1|0 represents 10
The original set of data is?
3. An insurance company crashed four cars of the same model at 5 miles per hour. The costs of repair for each of the four crashes were
$447,$430, $491, and $208
Compute the mean cost of repair. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.?
Compute the median cost of repair. Select the correct choice below and, if necessary, fill in the answer box to complete your choice?
Compute the mode cost of repair. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.?
1
0
1
3
2
1
4
4
7
8
3
3
5
5
5
7
9
4
0
1
Explanation / Answer
1. IQ should be a skewed right distribution.
2. Original set of data is:
10, 11, 13, 21, 24, 24, 27, 28, 33, 35, 35, 35, 37, 39, 40, 41
3. Mean = (Sum) / (No. of data points) = 1576/4 = 394
Median = average of 2nd and 3rd term after arranging into ascending order = (430 + 447)/2 = 438.5
There is no mode since all the values are unique.
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