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dmitriy555 [2]
4 years ago
15

Sera went to the mall and made four purchases. She spent $2.85,$5.11,$7.89and $4.15 Use mental math to determine how much money

Sera spent at the mall
Mathematics
1 answer:
igomit [66]4 years ago
7 0

Answer:

Sera spent <u>$20</u> at the mall.

Step-by-step explanation:

Given:

Sera went to the mall and made four purchases.

She spent $2.85,$5.11,$7.89and $4.15.

Now, to determine the money Sera spent at the mall.

<em>Sera made four purchases of:</em>

$2.85,

$5.11,

$7.89,

$4.15.

Now, by adding we get the total money she spent:

2.85+5.11+7.89+4.15

=20.

Therefore, Sera spent $20 at the mall.

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The distribution is not a standard normal distribution.

We know that the variable (X) usually obeys and follows a standard normal distribution provided that the summation of (X) is zero and the variance of the random variable V(X) = 1.

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Given that;

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As such, the distribution is not a standard normal distribution.

Therefore, we can conclude that the distribution is not a standard normal distribution.

Learn more about standard normal distribution here:

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3 years ago
Can someone help me with this question please.....
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Answer:

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Step-by-step explanation:

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mean = \frac{sum}{count}

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1739 + y = 2280 ( subtract 1739 from both sides )

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Answer:

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Step-by-step explanation:

In this question the given formation is:

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the total number of chickens are 3

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So, the smallest number of chicken that can be required to make this formation will be 3.

So, if we consider that the chickens are walking in a straight line, two (2nd and 3rd) chickens will be behind the 1st chicken, two chickens( 1st and 2nd) will be in front of the last (3rd) chicken and one (2nd) chicken is in the middle of two (between 1st and 3rd) chicken.

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