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3 years ago

I need help with both but if u only know one answer it fine but no links please

Mathematics

1 answer:

vovangra [49]3 years ago

5 0

Answer:

1.20%

2.Negative association

Step-by-step explanation:

1. There are 4 movies that are dramas with love interest out of 20 movies.

$\frac{4}{20} = 0.2$

or 20%.

2. In the scatter plot, as x increases, y decreases so that means we have a negative correlation.

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What is the value of the expression 4 Superscript 4?

Firdavs [7]

Answer:

What is the value of the expression 4 Superscript 4?

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. A60

kramer

Answer:

135°

60°

75°

Step-by-step explanation:

hope this helps

6 0

3 years ago

(-2.1) + (-0.1) how do you do this equation??

kenny6666 [7]

Answer:

Step-by-step explanation:

A = -2.2

( -2.1 ) + ( - 0.1 )

( -2.1 ) - 0.1. <—— over there, you will see that + is gone and the - has moved down, I done that because + plus with - equals to -.

-2.1

-0.1

———-

-2.2

7 0

4 years ago

A random sample of 121 automobiles traveling on an interstate showed an average speed of 65 mph. From past information, it is kn

loris [4]

Answer:

95 percent confidence interval for μ is determined by

(60.688 , 69.312)

a) be the same

Step-by-step explanation:

Step (i):-

Given data a random sample of 121 automobiles traveling on an interstate showed an average speed of 65 mph.

The sample size is n= 121

The mean of the sample x⁻ = 65mph.

The standard deviation of the population is 22 mph

σ = 22mph

Step (ii) :-

Given The 95 percent confidence interval for μ is determined as

(61.08, 68.92)

we are to reduce the sample size to 100 (other factors remain unchanged) so

given The sample size is n= 100

The mean of the sample x⁻ = 65mph.

The standard deviation of the population is 22 mph

σ = 22mph

Step (iii):-

95 percent confidence interval for μ is determined by

$(x^{-} - 1.96\frac{S.D}{\sqrt{n} } , x^{-} + 1.96 \frac{S.D}{\sqrt{n} } )$

$(65 - 1.96\frac{22}{\sqrt{100} } , 65 + 1.96 \frac{22}{\sqrt{100} } )$

(65 - 4.312 ,65 +4.312)

(60.688 , 69.312) ≅(61 ,69)

This is similar to (61.08, 68.92) ≅(61 ,69)

Conclusion:-

it become same as (61.08, 68.92)

4 0

4 years ago

1.56666666667 as a fraction? pls help asap

AURORKA [14]

to do this all you have to do is make the denominator 1 and the numerator should be 1.566666667

5 0

4 years ago