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:
Remember that we evaluate the term under the radical first.
Even though x < 0, x²² > 0
So,
The simplified expression is
<span>Hexagonal pyramid. It has got 7 bases and 12 edges.</span>
So here, the rule "keep,change,switch" works great. so you keep the first fraction the same, switch the division to multiplication and then turn the second fraction upside down
so it looks like this:
-1 * -9= 9
7* 5= 35 = (9/35)
then
7* 9= 63 = (63/64)
8* 8= 64
(-5)2 is a multiplication question that equals -10 and -52 is regular number
