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NemiM [27]
3 years ago
11

John runs a computer software store. Yesterday he counted 140 people who walked by the store, 63 of whom came into the store. Of

the 63, only 25 bought something in the store.
(a) Estimate the probability that a person who walks by the store will enter the store. (Round your answer to two decimal places.)
(b) Estimate the probability that a person who walks into the store will buy something. (Round your answer to two decimal places.)
(c) Estimate the probability that a person who walks by the store will come in and buy something. (Round your answer to two decimal places.)
(d) Estimate the probability that a person who comes into the store will buy nothing. (Round your answer to two decimal places.)
Mathematics
2 answers:
Grace [21]3 years ago
8 0

Answer:

.................

Step-by-step explanation:

............

Alik [6]3 years ago
6 0
A. 45%
b. 39.68%
c. 17.86%
d. 60.32%

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Find the solution set for the following problem. 5 diminished by 3 times a number is at most 11.
leva [86]
For this case, the first thing we are going to do is define the following variable:
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3 years ago
Any two lines lie in exactly one plane.<br><br> True<br> False
egoroff_w [7]
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6 0
3 years ago
Suppose a batch of metal shafts produced in a manufacturing company have a standard deviation of 1.5 and a mean diameter of 205
lawyer [7]

Answer:

the probability is 0.0750

Step-by-step explanation:

The computation of the probability is shown below;

The mean of x is

= 1.5 ÷ √79

= 0.1688

Now the probability is

= P(Z < -0.3 ÷ 0.1688) + P(\bar{x} > 0.3 ÷ 0.1688)

= P(Z < -1.78) + P(Z > 1.78)

= P(Z < -1.78) + 1 - P(Z < 1.78

= 0.0375 + 1 - 0.9625

= 0.0750

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3 0
3 years ago
What is the positive square root of 16?​
vekshin1

Answer:

4

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because The square root of 16 is 4, which is a rational number.

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Read 2 more answers
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