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Pavel [41]
3 years ago
8

A store manager did a study to determine the amount of money the first 50 customers spent in her store. The data are approximate

ly normally distributed with a mean of $29.60 and a standard deviation of $10.50. The formula for normalizing data is: Z= (X−μ / σ) Z is the normal score X is a discrete data value μ is the mean σ is the standard deviation Determine the probability that a customer spent over $35. Enter your answer as a decimal to the hundredths place.
Mathematics
1 answer:
MatroZZZ [7]3 years ago
6 0
P(x > 35) = 1 - P(x < 35) = 1 - P[z < (35 - 29.60)/10.50] = 1 - P(z < 0.5143) = 1 - 0.6965 = 0.3035

Therefore, answer is 0.30 to the hundredths place.
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A parking garage charges an initial fee plus an hourly rate. The prices are shown in the table.
andreyandreev [35.5K]
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8 0
3 years ago
What is the AREA of this figure?
elena-14-01-66 [18.8K]

Answer:

532m squared is the answer

Step-by-step explanation:

Split the shape into two shapes

one will be a square and the other one a triangle

1) since the length and the width of the square is 18m just Multiply

18x18=324m squared

2) look carefully the width of the square you split is equal to the base of the triangle, so you connect the 18 and the 8 together.

18+8=26m squared

3) Now solve the triangle since you know the height which is 16m squared.

A=lw/2

26x16=416

416 divided by 2 is 208

4) finally just Add

208+324=532m squared

Hopes this helps!

7 0
3 years ago
Describe and give an example of a rational and irrational number, plot points on a number line, simplify expressions and estimat
sergij07 [2.7K]

Answer:

Some of the top causes of poverty around the world :

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Conflict.

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Step-by-step explanation:

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5 0
3 years ago
Help me please Solve for r <br> d=rt
Vika [28.1K]

Watch closely.    I'll try to go slow.
Stop me if I go too fast, or if I do anything that you don't understand.

Ready ?


You said                               d      =  r t

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5 0
3 years ago
Please answer right away
Andreas93 [3]

Answer:

20 miles with an error margin of  ± 8 miles

Step-by-step explanation:

The margin of error of a result is the range in which an error can vary. To find the margin of error between both distances we have to

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So from this midpoint the value can vary between 8 points below and 8 points above that would cover the difference of 16 miles that we observed at the beginning

In this way, the correct answer is 20 miles with an error margin of  ± 8 miles

Done

8 0
3 years ago
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