Pablo's father is 4 years older than his mother. Pablo's mother is 42 years old. How old is his father? Pablo's father's age is:
1 answer:
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Answer: A. (636.9, 653.1)
Step-by-step explanation:
Given : Sample size : n=56
Significance level :
Critical value :
Sample mean :
Standard deviation :
The 95% confidence interval for population mean is given by :-
Hence, 95% confidence interval for population mean is (636.9, 653.1).
Answer:
20 students should be on each float
Step-by-step explanation:
Number of seniors = 100
Number of juniors = 80
To find number of students that should be on each float, find highest common factor (H.C.F) of 100 and 80
Write prime factorisation of 100 and 80.
100 = ×
80 = × 5
So,
H.C.F(100, 80) = × 5 = 4 × 5 = 20
Therefore,
20 students should be on each float