The number of deaths attributed to UV radiation in a sample of 40 African countries in the year 2002 is given in the table below. The units for this problem is deaths.

number of deaths
27
45
39
40
9
3
204
356
41
125
31
26
102
7
57
35
50
13
138
58
50
171
15
39
1
199
45
94
123
504
5
40
171
338
1177
456
6
84
433
98

a) Compute the mean and standard deviation of the set of sample data.

    Round answers to 1 decimal place(s) for the first answer box.

    Put correct units in the other answer box.

    mean =

    standard deviation =

b) Use Chebyshev's theorem to find an interval centered about the mean number of deaths in which you would expect at least 75% of the data to fall.

    Do not use your rounded answers from above to compute these endpoints.

    Round FINAL answers to 1 decimal place(s) for the interval.

    An answer might come out negative....type in the value you compute.

    Put correct units in the other answer box.

    (, )

c. Use Chebyshev's theorem to find an interval centered about the mean number of deaths in which you would expect at least 88.9% of the data to fall.

    Do not use your rounded answers from above to compute these endpoints.

    Round FINAL answers to 1 decimal place(s) for the interval.

    An answer might come out negative....type in the value you compute.

    Put correct units in the other answer box.

    (, )