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Radda [10]
4 years ago
11

On an exam, the average score is 76 with a standard deviation of 6 points What is the probability that an individual chosen at r

andom will have a score below 67 on this exam
Mathematics
1 answer:
AysviL [449]4 years ago
4 0

Answer:

P [ X < 67 ] =  0,66,81      or    66,81 %

Step-by-step explanation:

We assume Normal Distribution  N ( μ ; σ )    N ( 76 ; 6 )

z score for 67 is :

z(s) =  (  X - μ  ) /σ

z(s) =  (  67 - 76 ) / 6

z(s) =  - 9 / 6

z(s) = - 1,5

with 1,5 we fnd n z-table area undr the curve  α = 0,6681

Then  P [ X < 67 ] =  0,66,81      or    66,81 %

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slava [35]

Answer:

1:×4

m×4=(8+2n)×4

4m=32+8n

now,

1:×4 - 2:

4m-4m = 32+8n -4+4n

0=(32-4) +(8n-4n)

0=28+4n

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7 0
3 years ago
Hi guys please help me<br><br>what is the reciprocal of 3 5/9​
kramer

Answer:

9/32

Step-by-step explanation:

3 5/9

=> (27+5)/9

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Reciprocal of 32/9 is,

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3 0
2 years ago
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frez [133]
Quotient is when something is divided by something. therefore, an equation could be 9/c
3 0
4 years ago
Shelby made 5 quarts of juice for a picnic .She said that she made1 1/4 of juice/Explain Shelby's mistake
Svetach [21]
<span>1 gallon= 4 quarts 

She made 5 quarts of juice, that means that she has 1 gallon (4 quarts) and one quart left over!
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8 0
3 years ago
Read 2 more answers
The table below shows the relationship between m and p, where the independent variable is p.
scoray [572]

Answer:

C

Step-by-step explanation:

P is an independent variable, therefore making M a dependent variable.

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When plugging in P in choice A, M has a different answer than in the list.

A is not it.

When pluggin in P in choice C, M has the same answers as in the list.

C is the answer

5 0
2 years ago
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