Probability-and-statistics Questions Set 16:
Find the range of the given data set
{12, 19, 6, 2, 15, 4}
Solution:
If Median - Mean = 4, then Mode - Median is equal to _____
Solution:
If the mean of 20 samples is 2, what is the value of q?
Solution:
Find the Median of following data
{ 25, 12, 5, 24, 15, 22, 23, 25 }
Solution:
The mean of 5 , 4 , 16 , 3 , 62 , k , 5 , 9 , 11, 21, 4 is 13. find the value of 2k + 3.
Solution:
Four data sets are shown below.
Set 1: {10, 19, 38, 50, 51}
Set 2: {5, 21, 26, 39, 51}
Set 3: {9, 38, 50, 50, 51}
Set 4: {5, 28, 28, 28, 51}
Which data set has the largest Median ?
Solution:
Amit’s family drove through seven states on winter vacation. The prices of oil differ from state to state. Calculate the median oil cost.
{ 1.65 , 1.85 , 1.90 , 1.74 , 2.06 , 2.10 , 2.18 }
Solution:
Find the median, mode, and range for the given data
{ 190, 153, 168, 179, 194, 153, 165, 187, 190, 170, 165, 189, 185, 153, 147, 161, 127, 180 }
Solution:
Type II error in hypothesis testing is
Solution:
A farmer is growing potatoes. He grows some in a greenhouse and some outside and wants to compare which environment produces bigger potatoes. Here are the results of measuring his potatoes, in
cm:
Outside potatoes:
9, 8, 11, 14, 16, 13, 12
Greenhouse potatoes:
5, 6, 17, 16, 14, 4, 8
The farmer looks at the data and says “the greenhouse has the largest potato so this must be the best growing conditions”.
Decide whether you agree with the farmer.
( Hint : Compare Mean, Mode and Median )
Solution:
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