Answer: b. 70%
Step-by-step explanation:
Given : Nik logs the following hours meeting with clients (c) or doing other work (o) :
Mon: 6 c, 4 o
Tue: 8 c, 2 o
Wed: 9 c, 1 o
Thu: 7 c, 3 o
Fri: Off
The number of hours Nik spend with clients on Thursday = 7 [Number of corresponding to c is 7 in the table]
Total hours he spend in work on Thursday = 7+3 = 10
The percent of time Nik spent with clients on Thursday :
Hence, the Nik spent 70% of his time with clients on Thursday.
Thus , the correct option is b. 70%.
87 numbers do not contain the digit 9
Answer:
The mean of the sampling distribution of p is 0.75
The standard deviation of the sampling distribution of p is 0.0274
Step-by-step explanation:
According to the given data 75% of the sampled households watch sports on television at least once a month therefore the mean of the sampling distribution of p is 0.75.
In order to calculate the standard deviation of the sampling distribution of p we would have to use the following formula as follows:
Standard deviation = √ [ p ( 1 - p) / n ]
= √[ 0.75 * ( 1 - 0.75) / 250]
= 0.0274
The standard deviation of the sampling distribution of p is 0.0274.
