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Bess [88]
3 years ago
13

Which question is statistical? A) How many cookies are in a dozen? B) How many teachers gave an exam on Friday? C) What is your

student identification number? D) How many students from each homeroom signed up for tutoring?
Mathematics
2 answers:
sergey [27]3 years ago
8 0
The answer is d, because you can make it into percent and make it into graphs
igor_vitrenko [27]3 years ago
4 0

Answer:

Step-by-step explanation:

the answer is D

You might be interested in
1. Consider the chance experiment of selecting an adult at random from the sample. The number of credit cards is a discrete rand
Fantom [35]

Answer:

See the explanation below.

Step-by-step explanation:

Assuming the distribution table given:

X ( Number od Credit Cards)    Relative frequency

                   0                                    0.26

                    1                                    0.17

                   2                                    0.12

                   3                                    0.10

                   4                                    0.09

                   5                                    0.06

                   6                                    0.05

                   7                                    0.05

                   8                                    0.04

                   9                                    0.03

                   10                                   0.03

We can create the histogram for this data using the following code in R:

> x<-c(0,1,2,3,4,5,6,7,8,9,10)

> freq<-c(0.26,0.17,0.12,0.10,0.09,0.06,0.05,0.05,0.04,0.03,0.03)

> x1<-c(rep(0,26),rep(1,17), rep(2,12),rep(3,10), rep(4,9),rep(5,6),rep(6,5),rep(7,5),rep(8,4),rep(9,3),rep(10,3))

> hist(x1,breaks = x,main = "Histogram", ylab = "%", xlab = "Number of credit cards")

And we got as the result the figure attached. We see a right skewed distribution with majority of the values between 0 and 3

5 0
3 years ago
HELP ME PLEASE
charle [14.2K]
540 cell phones. 1800 divided by 80 is 22.5, and 22.5 times 24 is 540. (but im not like 100% sure so good luck)
5 0
3 years ago
Click the image please...
dexar [7]

Answer:

9^{-7}, 9^{-2}

Step-by-step explanation:

\frac{9^5\times9^{-9}}{9^3}\\\frac{9^{-4}}{9^3}\\ 9^{-7}

When you multiply like terms, you add their powers. When dividing like terms, you subtract their powers (subtract the power in the denominator from the one in the numerator).

(9^4)^3\times9^{-14}\\9^{12}\times9^{-14}\\9^{-2}

8 0
3 years ago
1/4x +4 = 1/2 solve with explanation
IRINA_888 [86]

Answer:

<h3>x = -14</h3>

Step-by-step explanation:

Given the equation

1/4x +4 = 1/2

Solving for x

Subtract 4 from both sides

1/4x +4 - 4 = 1/2 - 4

1/4 x  = (1-8)/2

1/4 x = -7/2

Cross multiply

2x = -7*4

2x = -28

x = -28/2

x = -14

Hence the value of x is -14

3 0
3 years ago
Use the equation d=z–9 to find the value of d when z=10.<br><br> d=
denis23 [38]

Step-by-step explanation:

d = z - 9

d = 10 - 9  ----> substitute

d = 1

5 0
3 years ago
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