Answer:
Step-by-step explanation:
p = .3
n = 150
p(bar ) = 1 - p = .7
![\sigma_p=\sqrt\frac{p(1-p) }{n} }](https://tex.z-dn.net/?f=%5Csigma_p%3D%5Csqrt%5Cfrac%7Bp%281-p%29%20%7D%7Bn%7D%20%7D)
![\sigma_p=\sqrt\frac{.3(1-.3) }{150} }](https://tex.z-dn.net/?f=%5Csigma_p%3D%5Csqrt%5Cfrac%7B.3%281-.3%29%20%7D%7B150%7D%20%7D)
=.037
b )
P ( .2 <p<.4 ) = P [ (.2 - .3) / .037 < z < ( .4 - .3 ) / .037 ]
= P [ (-2.7 < z < +2.7 ]
= .9965-.0035
= .993
c )
P ( .25 <p<.35 ) = P [ (.25 - .3) / .037 < z < ( .35 - .3 ) / .037 ]
= P [ (-1.35 < z < +1.35 ]
= .9115 - .0885
= .823
Answer:
if you divide it by 2, you would have 128 slices because 256 ÷ 2 gives you 128, and when you multiply 128 by 2 you get 26.
Step-by-step explanation:
Answer:
27
Step-by-step explanation:
2:3
18:?
-
2 x 9 = 18
3 x 9 = 27
The answer is 7 cups of water are needed for 21 cups of flour.
Shown work:
1 cup of water=3 cups of flours
? Cup of water=21 cups of flours
21 divided 3=7
1 multiply by 7= 7 cups of water needed