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
<u>Given </u><u>:</u><u>-</u><u> </u>
- Mrs. Smith left a 15% tip for a dinner that cost $62.40.
<u>To </u><u>find</u><u> </u><u>:</u><u>-</u><u> </u>
- About how much tip did Mrs. Smith leave?
<u>Solution</u><u> </u><u>:</u><u>-</u><u> </u>
The tip is 15% of $62.40 .
<u>•</u><u> </u><u>Calculating</u><u> </u><u>1</u><u>5</u><u>%</u><u> </u><u>of </u><u>$</u><u>6</u><u>2</u><u>.</u><u>4</u><u>0</u><u> </u>
- $ 62.40 * 15%
- $ 62.40 * 15/100
- $ 9.36
Answer:
Step-by-step explanation:
one
Answer:
sex i guess
Step-by-step explanation:
plzzz mark bianlist
Take 37% as an example, just add a decimal point to the left 2 times. Decimal = .37. Fraction would be 37/100, because you cannot simplify.