Answer:
The standard error of the mean = 5.14 mins
Step-by-step explanation:
Number of random sample (n) = 20
Mean(X) = 31.25 mins
Standard deviation (α) = 23.7 mins
Standard error of mean =
standard deviation / √sample size
= 23.7/√20
= 23.7/4.4721
= 5.14 mins
Answer: the tan. Of 60 is .3200
The cos. Of 45 is .5253
Hope this helps :)
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
total number of pencils = 186
number of students = 23
number of pencils each student gets = number of pencils ÷ number of pencils
=186/23
=8.08
so each student gets 8 pencils
8.54. The last number is low so it can not round up to 5
Answer:
The answer is: 81%
Step-by-step explanation:
Divide 405 by 500 and multiply result by 100 to get percent.
405 / 500 = 0.81
0.81 x 100 = 81%
Hope this Helps!! Have an Awesome Day!!