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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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Which of the following can you determine when you use deduction and start from a given set of rules and conditions?
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Deduction is a term used as inference to a known and validated principle. This is when you analyze points through logic from a given set of rules and conditions. You relate how the situation may conform to the rules. Thus. there is no wrong deduction. If you analyze it to be true, then that must be definitely correct. Therefore, the answer is letter B. What must be true.
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3 years ago
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27.2163 rounded to the nearest hundredth
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Answer:

27.22

Step-by-step explanation:

I just done it. it wasnt that hard

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Write an equation of the line that passes through a pair of points (-5, -2), (4, 5)
PIT_PIT [208]
To find the equation of a line knowing two points it passes through, we must first find the slope and then substitute the x and y values to figure out the y intercept. 

First thing is to find the slope using the formula m = Δy ÷ Δx
m = 5 - (-2) ÷ 4 - (-5)

Now we simplify 
m = 7 ÷ 9 

Our equation so far is y = 7/9x + b. Now we can substitute the values of x and y from a point to figure out the answer. The equation here uses the point (4,5)

5 = 7/9 · 4 + b

Get b on one side
5 - 28/9 = b

Simplify
b = 1 + 8/9

That makes the equation of the line y = 7/9x + (1 + 8/9)
8 0
4 years ago
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A detective finds a victim of murder at 9 am. At that time, the temperature of the body is 90.3 degrees F. One hour later, the b
LekaFEV [45]

Answer:

Step-by-step explanation:

Given

at 9 am temperature of the body is 90.3^{\circ}F

1 hr later temperature 89^{\circ}F

Temperature of room T=68^{\circ}F

According to newtons law

\frac{\mathrm{d} T}{\mathrm{d} t}=-k\left ( T-T_{room}\right )

\frac{\mathrm{d} T}{\mathrm{d} t}=-k\left ( T-68\right )

\frac{dT}{T-68}=-kdt

Integrating

=\int \frac{dT}{T-68}=-kdt

\ln |T-68|=-kt+c

T-68=Ae^{-kt}

Now at 9 am i.e. t=0,

90.3=A+68

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At 10 am i.e. t=1 hr T=89

89-68=22.3e^{-k}

e^{-k}=21

k=0.06006

Temperature of Normal human body is T=98.6 ^{\circ}F

98.6-68=e^{-0.06006t}

30.6=e^{-0.06006t}

Taking log both sides

t=-5.27

i.e. 5 hr and  16.2 min

i.e. victim murdered at 3 am and 43.8 min

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3 years ago
Which is the simplified form of -7+5-12?
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Answer:

- 14

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- 7 + 5 - 12 \\ ( - 7 + 5) - 12 \\  - 2 - 12 \\  = -  14

hope this helps

brainliest appreciated

good luck! have a nice day!

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