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Sphinxa [80]
3 years ago
8

There are 15 boys and 12 girls in Rosemary’s class. One of the students is selected at random to be the class monitor. What is t

he probability the student selected is a girl?
A.
45

B.
59

C.
54

D.
49
Mathematics
1 answer:
Yuliya22 [10]3 years ago
6 0

Answer:

D.

Step-by-step explanation:

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Step-by-step explanation:

<B is the right angle

<A is acute

<C is acute

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2 years ago
Using the given points and line, determine the slope of the line. (1, 2) and (2, 1) slope = 2 slope = 1 slope = -1
Bas_tet [7]

Answer:

-1

Step-by-step explanation:

Slope formula: (y₂ - y₁) / (x₂ - x₁)

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8 0
2 years ago
Suppose the selling price of homes is skewed right with a mean of 350,000 and a standard deviation of 160000 If we record the se
lys-0071 [83]

Answer:

The distribution will be approximately normal, with mean 350,000 and standard deviation 25,298.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Population:

Suppose the selling price of homes is skewed right with a mean of 350,000 and a standard deviation of 160000

Sample of 40

Shape approximately normal

Mean 350000

Standard deviation s = \frac{160000}{\sqrt{40}} = 25298

The distribution will be approximately normal, with mean 350,000 and standard deviation 25,298.

5 0
3 years ago
Read 2 more answers
Choose the correct description of the graph of the compound inequality shown below;
baherus [9]

Answer: C Hope it's helpful

3 0
2 years ago
How many lines of reflectional symmetry does an equallaterial triangle have
d1i1m1o1n [39]
3. It has 3 symmetrical lines, so, therefore, has 3 lines of reflectional symmetry.

Hope this helps!
<em>~cupcake </em>
4 0
3 years ago
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