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4 years ago

:Can you please help me with this answer I'm begging you>!!!!

Mathematics

1 answer:

Nuetrik [128]4 years ago

4 0

Mean of all scores means add them all up then divide by number of scores (5)

so
the mean has to be at least 95 aka, greater than or equal to 95
so
represent the last score with x
mean is the sum of all scores

$\frac{96+93+97+92+x}{5} \geq 95$
$\frac{378+x}{5} \geq 95$
multiply both sides by 5
$378+x \geq 475$
minus 378 from both sides
$x \geq 97$

he has to get at least 97 on the last test to get the highest score
good luck, marvin

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1 year ago

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3 years ago

In , the Pew Internet & American Life Project asked teens aged to several questions about their attitudes toward social medi

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Complete Question

The complete question is shown on the first uploaded image

Answer:

$\^ p_1 = 0.8102$

$\^ p_2 = 0.6904$

$\^ p_3 = 0.3701$

Step-by-step explanation:

From the question we are told that

The sample size is n = 743

The number that said social media makes them feel more connected to what is going on in their friends' lives is k = 602

The number that said social media helps them interact with a more diverse group of people is y = 513

The number that said feel pressure to post content that will get a lot of likes and comments is c = 275

Generally a point estimate of the proportion of teens aged 13 to 17 who say social media makes them feel more connected to what is going on in their friends' lives is mathematically represented as

$\^ p_1 = \frac{k}{n}$

=> $\^ p_1 = \frac{602}{743 }$ \

=> $\^ p_1 = 0.8102$

Generally a point estimate of the proportion of teens aged 13 to 17 who say social media helps them interact with a more diverse group of people is mathematically represented as

$\^ p_2 = \frac{k}{n}$

=> $\^ p_2 = \frac{513}{743 }$ \

=> $\^ p_2 = 0.6904$

Generally a point estimate of the proportion of teens aged 13 to 17 who feel pressure to post content that will get a lot of likes and comments is mathematically represented as

$\^ p_3 = \frac{k}{n}$

=> $\^ p_3 = \frac{275}{743 }$

=> $\^ p_3 = 0.3701$

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