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3 years ago

9

effren recorded the number of students in each class level at highschool.based on his findings,what is the probability that a ra

ndomly selected student will be a freshman?

1 answer:

eimsori [14]3 years ago

4 0

The answer is C) 3/10

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Can some one plzzzzzzzzzz help 1\/5

alukav5142 [94]

1. 8a+a^2-10
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3. -2c^2+4c
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2 years ago

An automobile manufacturer claims that its jeep has a 53.9 miles/gallon (MPG) rating. An independent testing firm has been contr

Advocard [28]

Answer:

Value of the test statistic, $z_{test} = - 1.17$

Step-by-step explanation:

Null hypothesis, $H_{0}: \mu = 53.9$

Alternative hypothesis, $H_{a} : \mu \neq 53.9$

Sample mean, $\bar{X} = 53.7$

Sample size, n = 110

Standard deviation, $\sigma = 1.8$

Significance level, $\alpha = 0.02$

The value of the test statistics is given by the formula:

$z_{test} = \frac{\bar{X} - \mu}{\frac{\sigma}{\sqrt{n} } } \\z_{test} = \frac{53.7 - 53.9}{\frac{1.8}{\sqrt{110} } } \\z_{test} = - 1.17$

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2 years ago

How do you solve this help

vfiekz [6]

Answer:

arc PST = 254°

Step-by-step explanation:

arc QPT = 180° because it is a diameter

arc PQ = 74°

arc PT = 180° - 74° = 106°

arc PST = 360° - 106° = 254°

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3 years ago

a fish tank is shaped like a rectangular prism. it has a length of 5 ft., a width of 2 ft., and a height of 3 ft. what is the vo

coldgirl [10]

Answer:

V (volume) = 30

Step-by-step explanation:

V=whl=2·3·5=30

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2 years ago

What is another way to write 300+20+5?

Helga [31]

300+5+20 COULD BE ONE WAY

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3 years ago

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