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solniwko [45]
3 years ago
12

Kesha it’s plain to rent a van for a trip to Mt.rainier two of her friends each went to the same type of van from the same car r

ental company last week
Mathematics
1 answer:
Lelechka [254]3 years ago
8 0

Answer:

a

Step-by-step explanation:

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The monthly amounts spent for food by families of four receiving food stamps approximates a symmetrical, normal distribution. Th
e-lub [12.9K]

Answer:

95% of monthly food expenditures are between $110 and $190.

Step-by-step explanation:

Given : The monthly amounts spent for food by families of four receiving food stamps approximates a symmetrical, normal distribution. The sample mean is $150 and the standard deviation is $20.

To find : Using the Empirical rule, about 95% of the monthly food expenditures are between which of the following two amounts?

Solution :

At 95% of the data is between two standard deviation to left and right of the mean is given by,

To the left side, \bar{x}-2\sigma

To the right side, \bar{x}+2\sigma

We have given,

The sample mean \bar{x}=\$150

The standard deviation \sigma=\$20

Substitute in the formula,

\bar{x}-2\sigma

=150-2(20)

=150-40

=110

\bar{x}+2\sigma

=150+2(20)

=150+40

=190

Therefore, 95% of monthly food expenditures are between $110 and $190.

6 0
3 years ago
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m_a_m_a [10]
I dont even get the question
4 0
3 years ago
2995 divided by 27 but estimated
Vinil7 [7]

Answer: 110

Step-by-step explanation:

6 0
3 years ago
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Chad likes to play Bingo at the nearby American Legion Hall. One day he goes into the hall with $14 in his
BigorU [14]

Answer:

11

Step-by-step explanation:

4 0
2 years ago
Plz help me with 52 a and b
8090 [49]
A equals 54
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