So
Total cost of the workbooks is d
And the number of workbooks is t
Therefore d = 95
95=19t
t=95/19=5
5 workbooks
Answer: 543
Step-by-step explanation:
Given : Level of confidence = 0.98
Significance level : 
By using the normal distribution table,
Critical value : 
Margin of error : 
The formula to find the population proportion if prior proportion of population is unknown :-


Hence, the company survey minimum sample having size =543
Answer:
≈0.167 (2/3)
Step-by-step explanation:
hope this helps!
The answer is a i’m pretty sure, if i’m incorrect then i’m sorry but i’m sure that it’s a :)
Answer:
this is so simple lol 5/40
Step-by-step explanation: