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2 years ago

Helpp nowww i will give branliest

Mathematics

2 answers:

Romashka [77]2 years ago

6 0

Answer: Z

Step-by-step explanation: pls if im correct give me brainliest, if not correct give it to some one else

RUDIKE [14]2 years ago

4 0

Answer:

Step-by-step explanation:

Y axis is the line thats up and down

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In a random sample of 40 teenagers, 18 enjoy reading for fun, and in a random sample of 40 adults, 12 enjoy reading for fun. Do

Savatey [412]

Answer: Yes. The data provides convincing evidence.

Step-by-step explanation:

In a random sample of 40 teenagers, 18 enjoy reading for fun. The percentage of teenagers who enjoy reading for fun will be:

= 18/40 × 100

= 45%

In a random sample of 40 adults, 12 enjoy reading for fun. The percentage of adults who enjoy will be:

= 12/40 × 100

= 30%

Therefore, the proportion of adults who enjoy reading for fun is less than that of teenagers. Therefore, the data provides convincing evidence.

5 0

3 years ago

Which function is linear?

Mariulka [41]

Answer:

Step-by-step explanation:

7 0

3 years ago

A random sample of 85 group leaders, supervisors, and similar personnel revealed that a person spent an average 6.5 years on the

strojnjashka [21]

Answer:

95% of confidence interval for the Population

( 6.1386 , 6.8614)

Step-by-step explanation:

Step( i ):-

Given random sample size 'n' =85

Mean of the sample size x⁻ = 6.5 years

Standard deviation of Population = 1.7 years

Level of significance = 0.95 or 0.05

Step(ii):-

95% of confidence interval for the Population is determined by

$(x^{-} - Z_{0.05} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.05} \frac{S.D}{\sqrt{n} })$

$(6.5 - 1.96\frac{1.7}{\sqrt{85} } , 6.5 + 1.96 \frac{1.7}{\sqrt{85} })$

( 6.5 - 0.3614 , 6.5 + 0.3614 )

( 6.1386 , 6.8614)

Conclusion:-

95% of confidence interval for the Population

( 6.1386 , 6.8614)

8 0

3 years ago

2) Tell whether each statement about the expression 5y + 9 is True or False

Snezhnost [94]

True the variable in the expression is y

7 0

3 years ago

Read 2 more answers

1. tan (x+x) 2. = tan(x) + tan (x)/1 - tan(x)tan(x) 3. = 2tan(x)/1-tan^2 (x)

RUDIKE [14]

Step-by-step explanation:

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3 years ago