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Yanka [14]
3 years ago
5

For the 2015 Intel Science Fair, two brothers in high school recruited 47 of their classmates to take part in a two-stage study.

Participants had to read two different passages and then answer questions on them, and each person's score was recorded for each of the two tests. There were no distractions for one of the passages, but participants received text messages while they read the other passage. Participants scored significantly worse when distracted by incoming texts. Participants were also asked if they thought they were good at multitasking (yes or no) but "even students who were confident of their abilities did just as poorly on the test while texting."1
(a) How many cases are there?(b) How many variables are mentioned in the description?i. How many of these are categorical?ii. How many are quantitative?
Mathematics
1 answer:
kiruha [24]3 years ago
3 0

Answer:

a) The number of participants in the study are 47. Therefore, the number of cases is 47.

b) The number of variables mentioned are 3.

The variables are: Test-1, Test-2 and Multitasking question.

The number of categorical variable is multitasking question = 1

Number of quantitative variable are 2. They are test scores for test 1 and 2.

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The parking garage at the airport has 4750 empty parking spaces and 250 full parking spaces. What percent of the spaces in the g
KiRa [710]

Answer:

I'd say around 95% or 94.737%

Step-by-step explanation:

4750 - 250 = 4500

4750/250 = 1/19

1/19 = 0.052 or close to 5%

4750 x 94.737% = 4500.0075

I hope this helps!

3 0
2 years ago
Please help
Harman [31]

Answer:

we get \mathbf{gf(2)=-\frac{1}{3}}

Step-by-step explanation:

We are given:

f(x)=1-2x\\g(x)= \frac{1}{x}\\h(x)=x^3+1

We need to find value of gf(2)

gf(2)=g(f(2))

First putting f(x) inside of g(x) and then putting x=2

gf(x)=g(f(x))\\gf(x)=\frac{1}{1-2x}

Now putting x=2 to find gf(2)

gf(x)=\frac{1}{1-2x}\\gf(2)=\frac{1}{1-2(2)}\\gf(2)=\frac{1}{1-4}\\gf(2)=\frac{1}{-3}\\gf(2)=-\frac{1}{3}

So, we get \mathbf{gf(2)=-\frac{1}{3}}

3 0
2 years ago
A drawer in lisa's class is in the shape of a rectangular prism with a length of 12 inches, a width of 1012 inches, and a height
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3 years ago
Kelsay opened a bag of marbles that included red, yellow, green,and blue marbles.There were 144 marbles in all.If there was an e
vladimir2022 [97]

Answer:

36

Step-by-step explanation:

Given that Kelsay opened a bag of marbles.

The bag included 4 colours of marbles of equal numbers.

The four colours are red, yellow, green and blue.

To find the no of marbles of each colour in the bag:

Total number of marbles = 144

Total colours = 4

Hence divide total number by no of colours to get the answre

No of each colour marbles = 144/4 = 36


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The radii of Earth and Pluto are 6,371 kilometers and 1,161 kilometers, respectively.
abruzzese [7]

Answer:

A

Step-by-step explanation:

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