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Tems11 [23]
3 years ago
15

A teacher asks 90 students who drive how many speeding tickets they received in the last year. predict the shape of the distribu

tion and explain. select the correct answer below.
a. the distribution will be​ left-skewed. most people will have at least one​ ticket, but there will be a few people with no tickets.
b. the distribution will be​ left-skewed. most people will have no​ tickets, but there will be a few people with​ 1, 2,​ 3, or more tickets.
c. the distribution will be​ right-skewed. most people will have no​ tickets, but there will be a few people with​ 1, 2,​ 3, or more tickets.
d. the distribution will be roughly symmetric. the number of people who have fewer tickets than the mean and the number of people who have more tickets than the mean is roughly equal.
e. the distribution will be​ right-skewed. most people will have at least one​ ticket, but there will be a few people with no tickets.
Mathematics
1 answer:
CaHeK987 [17]3 years ago
8 0
Primary sources contain information

A. with the advantage of hindsight and the perspective of an outside observer and may be more objective.
B. provided by someone who's been through an event. It's a firsthand account that lends a unique perspective.
C. on statistics gathered after an important historical event.
D. on psychological information gathered from raw data from psychological tests.
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Rama09 [41]
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4

Hope this helps!
4 0
4 years ago
Find 3 numbers in G.P whose sum is 28 and whose product is 512
nataly862011 [7]

Answer:

4, 8, 16.

Step-by-step explanation:

Let the three numbers in GP be r, ra, ra^2, where a \ne 0. We are given that r + ra + ra^2 = 28 and r \cdot ra \cdot ra^2 = r^3a^3 = 512, the latter of which gives ra = \sqrt[3]{512} = 8. So substituting this into the former equation gives \frac{8}{a} + 8 + 8a = 28 or

8 + 8a + 8a^2 = 28a\\2a^2 + 2a + 2 = 7a\\2a^2 - 5a + 2 = 0\\(2a-1)(a-2) = 0\\a = \frac{1}{2} \vee a = 2

And this gives our answer directly.

3 0
3 years ago
Which of the following is a factor of 3x^3+18x^2+27x? <br> A. 9x<br> B. x^3<br> C. x+3<br> D. x-3
Tju [1.3M]
3x³ + 18x² + 27x = 3x(x² + 6x + 9) = 3x(x+3)²

Answer: <span>C. x+3</span>
3 0
4 years ago
Write as a decimal: 203% 0.203 2.03 20.3 203
stellarik [79]
The correct answer is:  [B]:  " 2.03 " .
__________________________________
Note:  "203 % = 203/100 = 203 ÷ 100 = ?

203. ÷ 100 = ?

Move the decimal point (in "203." )  two (2) spaces back, since we are DIVIDING by "100"; which has TWO (2) zeros;

to get:  " 2.03" ; which is:  Answer choice:  [B].
______________________________________________
3 0
4 years ago
Which of the following expressions is written in simplest form
nadya68 [22]

Answer: I x^2 y^3 z

Step-by-step explanation:

This is the one most simplified. I’ll tell you why the others are incorrect.

F) 3^5 x^2 can be simplified. 3^5= 243. The simplified answer would be 243 x^2

G) (5y)^3= 125y^3

H) a^0 b (^0= 1 always) -> ab

Hope this helps!

3 0
4 years ago
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