The answer is $660 because when multiply 3000•.22=$660.
Answer: 505
Step-by-step explanation:
The formula to find the sample size n , if the prior estimate of the population proportion (p) is known:
, where E= margin of error and z = Critical z-value.
Let p be the population proportion of crashes.
Prior sample size = 250
No. of people experience computer crashes = 75
Prior proportion of crashes 
E= 0.04
From z-table , the z-value corresponding to 95% confidence interval = z=1.96
Required sample size will be :
(Substitute all the values in the above formula)
(Rounded to the next integer.)
∴ Required sample size = 505
Answer:
2.6 and 5.4 are both the same sign, he should add them and then take that negative sign from (-5.4), so the answer would be -8.0.
Answer:
9 inches a day
Step-by-step explanation:
9 multiplied by 6 is 54
Answer:
15+n
Step-by-step explanation:
Let the number be 'n'
Fifteen=15
increased by= +
a number= n
Hope this helps ;) ❤❤❤