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sleet_krkn [62]
3 years ago
15

A class’s test scores are normally distributed if the average score 60 and the standard deviation is 7 choose the spots where th

e students scoring below 46 and above 74 lie
Mathematics
2 answers:
AleksandrR [38]3 years ago
6 0

Answer: Look at the picture below

Step-by-step explanation: I got this right on Edmentum

Brrunno [24]3 years ago
5 0

Answer:

46

Step-by-step explanation:

We are given that a  class's test scores are normally distributed with an average score of 60.

We know that the curve of a normal distribution is symmetric about its mean.

60-14=46

60+14=74

Hence, the point 46 lies to the left of the mean and 74 lies to the right of the mean, and the two points have the same function value.

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I can't figure this question out I've tried multiple times but only 2/3. Help, please.
Scrat [10]

Answer:

yes it is 2/3

Step-by-step explanation:

4 0
3 years ago
Is the ratio $81 in 9 hours equivalent to $63 in 7 hours
In-s [12.5K]
Yes they are equivalent because their ratio is 9
81/9= 9
63/7=9
3 0
3 years ago
Given ΔKLM with lengths as marked, what is the relationship of segment NO to segment KL?
Oliga [24]

Segment NO is parallel to the segment KL.

Solution:

Given KLM is a triangle.

MN = NK and MO = OL

It clearly shows that NO is the mid-segment of ΔKLM.

By mid-segment theorem,

<em>The segment connecting two points of the triangle is parallel to the third side and is half of that side.</em>

⇒ NO || KL and NO = \frac{1}{2}KL

Therefore segment NO is parallel to the segment KL.

6 0
3 years ago
What is 200% of 90?<br> Order from least to greatest?<br> 68% 0.63 13/20
Mandarinka [93]

200% of 90 is 180.

13/20=65/100 so

.63 < 13/20 < 68%

4 0
4 years ago
A retiree invests 3,000 in a savings plan that pays 3% per year. What will the account balance be at the end of the first year
Lubov Fominskaja [6]

Interest earned = rate charged × amount invested

Interest = 3/100 × $3000 = $90

Account balance after one year = Amount invested + Interest earned

Account balance after one year = $3000 + $90 = $3090

7 0
3 years ago
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