Step-by-step explanation:
T78 = 5 + (78-1)(3)
= 5 + 77(3)
= 5+231
= 236
Answer:
A. 0.0049
B. Yes
Step-by-step explanation:
Sample proportion = 0.64
N = 1000
Population proportion = 0.60
We solve for standard deviation
= √p(1-p)/n
= √0.60(1-0.60)/1000
= √0.60x0.40/1000
= √0.00024
= 0.0155
A.
The probability of sample >=0.64
Z>=0.64-0.60/0.0155
Z >= 0.04/0.0155
So z >= 2.5806
Using excel this equal to 0.0049
0.0049 is probability of sample proportion being 0.64 at least.
B.
This answer in a shows that than 60% of households in the united states income class purchased life insurance last year.
Answer: Carlos
Step-by-step explanation:
Carlos had finished half of his project and Mindy had finished a third.
Half > Third
To confirm, you can convert both to decimals.
1/2 = 0.5
1/3 = 0.33
0.5 > 0.33
<em>Carlos has therefore finished more of his project than Mindy. </em>
Answer:
40 students earned a B on this paper.
40%×80=32 people who chose action as their fav.