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const2013
2 months ago
8

What z score in a normal distribution has 33% of all score above it? ap stats quiz 2.2a answers?

Mathematics
1 answer:
AnnZ [12.3K]2 months ago
8 0

What z score corresponds in a normal distribution to 33% of all scores falling above it?

Answer: A z score that presents 33% of all scores above will result in 67% of scores being below.

To determine the needed z score, we identify the z value aligning with a probability of 0.67.

Referring to the standard normal table, we find:

z(0.67)=0.44

Hence, the z score = 0.44 represents 33% of all scores above.


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A city determines that a planned community must have at least 4 acres of developed and open space, and the difference
lawyer [12517]

Answer:

The attached figure illustrates the graph.

Step-by-step explanation:

Let

x represents the count of open acres

y depicts the total developed acres

It is established that

x+y \geq 4 corresponds to inequality A

x\leq 1 corresponds to inequality B

Keep in mind that

if the open acres, x, is limited to a maximum of 1, then it follows that x must adhere to ≤ 1

The system of equations can be solved by graphing

The solution is found in the shaded area (Note Negative acreage counts are not permissible)

The attached figure serves as a visual representation.

3 0
2 months ago
A man purchased 6 fruits at Rs 10 How many fruits will he sell at Rs 9 so that he may make an overall profit of 8%
Svet_ta [12734]

Response:

Detailed breakdown:

P(x)=S(x)-C(x)

0.8=9-C(x)

C(x)=9 -0.08

C(x)=8.92

3 0
1 month ago
A grocery store wants to examine the relationship between the sales amounts each day at two different locations, store A and sto
Leona [12618]

Response:

The average of the 10 sales figures for store A is $40,000.

Detailed explanation:

Provided;

yˆ= −3,000 + 1.2x...................... (1)

Where;

x = daily sales amounts at store A or the average of the 10 sales amounts for store A =?

yˆ = daily sales amounts at store B or the average of the 10 sales amounts for store B = $45,000

Substituting y = 45,000 into equation (1) and solving for x, yields:

45,000 = −3,000 + 1.2x

45,000 + 3,000 = 1.2x

48,000 = 1.2x

x = 48,000 / 1.2

x = 40,000

Consequently, the mean of the 10 sales figures for store A is $40,000.

8 0
1 month ago
Yolanda is buying supplies for school. She buys n package of pencils at $1.40 per package and m pads of paper at $1.20 each. Wha
Inessa [12570]

To tackle this issue, we need to clarify what each variable stands for. Here, n indicates the number of pencil packages purchased by Yolanda, while m represents the number of paper pads she buys. We calculate the total cost by multiplying these variables by their individual prices, which helps us determine the expense for both pencil packages and pads of paper.

The expression "1.4n" indicates the overall cost for n pencil packages.

On the other hand, "1.2m" signifies the complete expense for m pads of paper.

As we sum these two expressions, the resulting total reflects the overall expenditure for both items.

The equation "1.4n + 1.2m" summarizes this calculation.

I hope this provides clarity!

8 0
2 months ago
A students calculation was found to have a 15.6% error, and the actual value was determined to be 25.7 mL. What are the two poss
PIT_PIT [12445]
The true value is 25.7 ml.
The calculated error is 15.6%.
Thus, the error amount equals 0.156 times 25.7, which calculates to 4.0092 ml.

The percentage error indicates that the student's measurement could either exceed or fall short of the true value by this error amount.

This leads to two potential readings:
one possibility is: 25.7 + 4.0092 = 29.7092 ml
the other possibility is: 25.7 - 4.0092 = 21.6908 ml

8 0
2 months ago
Read 2 more answers
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