2 years ago

Shoe size and grade point average

Mathematics

1 answer:

sergey [27]2 years ago

7 0

Answer:

Mild correlation.

Step-by-step explanation:

Girls tend to have smaller feet and so smaller shoe sizes and they tend to score better at school.

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What two ratios are equivalent to 11/12

skad [1K]

(11 x2) (12 x 2)
22 : 24

or

(11x3) (12 x 3)
33 : 36

both are equivalent to 11/12

6 0

3 years ago

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Mandy has an IQ of 115. We know that the mean () IQ is 100 with a standard deviation of 15. There are 100 people in Mandy’s Alc

Alex787 [66]

Answer: 16

Step-by-step explanation:

Given : Mean : $\mu=100$

Standard deviation : $\sigma =15$

The value of z-score is given by :-

$z=\dfrac{x-\mu}{\sigma}$

For x= 115

$z=\dfrac{115-100}{15}=1$

The p-value : $P(z>1)=1-P(z$

Now, the number of people smarter than Many is given by :_

$100\times0.1586553=15.86553\approx16$

Hence, there are 16 members smarter than Mandy.

8 0

3 years ago

If the odds against a student receiving an A grade in a mathematics class are 7 to 3, what is the

katovenus [111]

Answer:

70%

Step-by-step explanation:

Since it can't go over 100%, and our numbers are 7 and 3, they are 70% and 30%, which add up to 100%.

4 0

2 years ago

What is 2 2/3×3 1/4 as a fraction form

8090 [49]

Answer:

8 2/3

Step-by-step explanation:

2 2/3×3 1/4

Change to improper fractions.

2 2/3=8/3

3 1/4=13/4

8/3x13/4=26/3

=8 2/3

Hope this helps :)

4 0

2 years ago

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The perimeter of a triangle is 140 cm the length of the second side is twice the length of the first side the length of the thir

kykrilka [37]

Perimeter = 140

Side 1 = x

Side 2 = 2x

Side 3 = 3x - 10

x + 2x + 3x - 10 = 140

6x - 10 = 140

6x = 150

x = 25

Side 1 = 25 cm

Side 2 = 50 cm

Side 3 = 65 cm

Hope this helps!! :)

6 0

2 years ago

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