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3 years ago

Please help me with this

Mathematics

2 answers:

ad-work [718]3 years ago

6 0

Everything should add up to 100%. So do
20 + 40 + 10 + 5 = 75

Now subtract 75 from 100

100 -75 = 25

25%

Ratling [72]3 years ago

5 0

Answer: Everything should add up to 100%. So do

20 + 40 + 10 + 5 = 75

Now subtract 75 from 100

100 -75 = 25

25%

Step-by-step explanation:

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Manipulate the first equation to
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An article in American Demographics claims that more than twice as many shoppers are out shopping on the weekends that during th

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Answer:

0.3085,0.2417,0.0045

Step-by-step explanation:

Given that X, the amount of money spent at shopping centers between 4 P.M. and 6 P.M. on Sundays has a normal distribution with mean $85 and with a standard deviation of $20.

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To convert into std normal variate we use the following formula

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a) the probability that he has spent more than $95 at the mall

= $P(X>95) = P(Z>0.5)=\\0.5-0.1915\\=0.3085$

b. the probability that he has spent between $95 and $115 at the mall

= $P(95$

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