Answer:
total capacity of tank = 250L
Portion of tank emptied = 3/4*250= 187.5L
water in tank = 250 - 187.5 =62.5L
Answer:
d. There is a 98% chance that the true proportion of customers who click on ads on their smartphones is between 0.56 and 0.62.
Step-by-step explanation:
Confidence interval:
x% confidence
Of a sample
Between a and b.
Interpretation: We are x% sure(or there is a x% probability/chance) that the population mean is between a and b.
In this question:
I suppose(due to the options) there was a small typing mistake, and we have a 98% confidence interval between 0.56 and 0.62.
Interpreation: We are 98% sure, or there is a 98% chance, that the true population proportion of customers who click on ads on their smartphones is between 0.56 and 0.62. Option d.
Answer:

Step-by-step explanation:

Lets solve the fraction first

9.6230 x 0.44 = 4.23
4.23 x 3.721 = 15.76

Answer:
A
Step-by-step explanation:
A
Answer:
(2,0)
Step-by-step explanation:
-1-1 = 2
-3+3=0
Taking x2 and x1 and y2 and y1 we have found our slope