23.4 ft2
Step-by-step explanation:
jvuctctctcrxrxrxrxrxr
.75x+1.29y < $7.00
x represents how many bagels he can buy
y represents how many cream cheese containers he can buy
It would take Bicycle City 4 days to build the bike
13/20 = x / 100
x = (13*100) / 20 = 65 % answer
Answer: 151
Step-by-step explanation:
When the prior estimate of population proportion is available , then the formula for sample size:
, where p= prior estimate of population proportion
z*= critical-value.
E= Margin of error.
Let p be the proportion of of girls "wait for their missionary".
p = 11% =0.11
E= ± 0.03
The critical z-value corresponding to 90% confidence level = z*=1.645 [using z-table ]
Substitute all the values in the above formula , we get
Required sample size :
[Rounded to next integer.]
Thus, the number of observations he needs in his sample = 151