PLZZZ I NEED HELP ON C IM ON A QUIZ

If there is a positive correlation between number of years studying math and shoe size (for children), does that prove that lar

stealth61 [152]

Answer:

The hidden variable is age.

Step-by-step explanation:

That does not prove that larger shoes cause more studying math or vice versa.

The children with larger shoes are most probably older so they would have done more years of studying than the younger ones.

The hidden variable is the age of the child.

8 0

3 years ago

Helena's dance team scores 68 points at a competition.

olchik [2.2K]

A relative frequency histogram is the data display that Helena should use if she wants to know the percentage of the teams that scored higher than her team.

<h3>What is a relative frequency histogram?</h3>

A relative frequency histogram is a frequency histogram that compares each class to the total number of items.

Since she wants a data display, a histogram is required to show the graphs of the scores of the various teams.

However, she needs to combine the histogram with relative frequencies to show the ratio of the frequency of her team's score to the total frequency.

Thus, Helena requires a relative frequency histogram to achieve the data display of percentages of the teams' scores.

Learn more about relative frequencies at brainly.com/question/26177128

#SPJ1

7 0

2 years ago

The pair of points is on the graph of an inverse variation. Find the missing value.

Minchanka [31]

Step-by-step explanation:

here is the answer babe. Feel free to ask for more help

6 0

3 years ago

A newsletter publisher believes that 64d% of their readers own a Rolls Royce. A testing firm believes this is inaccurate and per

fgiga [73]

Answer:

Step-by-step explanation:

The null hypothesis

$H_o:p=0.64$

The alternative hypothesis

$H_1:p \neq 0.64$

At 0.02 level of significance,

the testing firm rejects the null hypothesis.

This implies that the rejection of the null hypothesis shows that there is sufficient evidence to reject a newsletter publisher who believes that 64% of their readers own a Rolls Royce.

6 0

3 years ago

A group of 54 college students from a certain liberal arts college were randomly sampled and asked about the number of alcoholic

aliya0001 [1]

Answer:

P-value = 0.4846

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 4.73

Sample mean, $\bar{x}$ = 4.35