All categories

2 years ago

In 2005, there were 74,250 car accidents. In 20,187 of them, the driver was a

Mathematics

1 answer:

zhuklara [117]2 years ago

6 0

Answer:

27.19% probability that a female driver was involved in an accident

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question:

74,250 car accidents. Of those, in 20,187, the driver was a female.

Based on this, what is the probability that a female driver was involved in an accident?

p = 20187/74250 = 0.2719

27.19% probability that a female driver was involved in an accident

You might be interested in

H(x)= 8 1 x 3 −x 2 h, left parenthesis, x, right parenthesis, equals, start fraction, 1, divided by, 8, end fraction, x, cubed

otez555 [7]

Answer:

$m = 324$

Step-by-step explanation:

The average rate of change is:

$m = \frac{h(2)-h(-2)}{2 - (-2)}$

$h(-2) = 81\cdot (-2)^{3}-(-2)^{2}$

$h(-2) = -652$

$h(2) = 81\cdot (2)^{3}-(2)^{2}$

$h(2) = 644$

$m = \frac{644-(-652)}{2-(-2)}$

$m = 324$

4 0

2 years ago

Solve the inequality. c – 5 ≤ 6

Vilka [71]

Hello There!

Follow through:
c - 5 $\leq$ 6
Add 5 to both sides:
c - 5 + 5 ≤ 6 + 5
Simplify:
c ≤ 11

C is smaller than or equal to 11.

Hope This Helps You!
Good Luck :)

- Hannah ❤

3 0

2 years ago

Read 2 more answers

A few people who have a particular disease take part in a medical trial that tests the effect of a medicine on the disease. Half

Rom4ik [11]

Answer:

1.The probability that a person gets well is 70%,

2.the probability that the person was cured because of the medicine is 60%

Step-by-step explanation:

chance of curing by medicine=60%

chance of curing without medicine=10%

total chance of curing=60%+10%=70%

chance of person being cured by medicine=60%

3 0

2 years ago

A major retail clothing store is interested in estimating the difference in mean monthly purchases by customers who use the stor

siniylev [52]

Answer: 3.49

Step-by-step explanation:

When standard deviation is known then the test statistic for difference of two population means (independent population) is given by :-

$z=\dfrac{\overline{X}-\overline{Y}}{\sqrt{\dfrac{\sigma_1^2}{n_1}+\dfrac{\sigma_2^2}{n_2}}}$

Given : $n_1=86\ \ , \ n_2=113$

$\overline{X}=45.67\ \ , \ \overline{Y}=39.87$

$\sigma_1=10.90\ \ ,\ \sigma_2=12.47$

Then , the value of the test statistic will be :-

$z=\dfrac{45.67-39.87}{\sqrt{\dfrac{(10.9)^2}{86}+\dfrac{(12.47)^2}{113}}}\\\\=\dfrac{5.8}{\sqrt{2.757625787}}=3.4926923081\approx3.49$

Hence, the value of the test statistic = 3.49

4 0

2 years ago

If X- 6 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the equ

Verdich [7]

The rule, letting d=discriminant:

d>0, two real solutions

d=0, one real solution

d<0, no real solution (but there are two imaginary solutions)

So if it has only one real solution, the discriminant is equal to zero.

6 0

2 years ago

Read 2 more answers