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3 years ago

Dentify as an increase or decrease. Then find the percent of increase or decrease. If necessary, round to the nearest percent.

Mathematics

1 answer:

love history [14]3 years ago

4 0

Answer:

Step-by-step explanation:

The difference is 130-150 = -20, a decrease.

-20/150 ≅ -0.133, a decrease of 13.3%

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A local university wanted to understand what students prefer to eat during finals. They asked 1000 students, "Do you prefer chic

olga55 [171]

Answer:

$P(\text{Pizza}\ |\ \text{Female})=0.225$

Step-by-step explanation:

The two-way frequency table is attached below.

We have to calculate the probability of, a person chosen at random prefers pizza given that they are female, i.e $P(\text{Pizza}\ |\ \text{female})$

This is a conditional probability.

We know that,

$P(A\ |\ B)=\dfrac{P(A\ \cap\ B)}{P(B)}$

So,

$P(\text{Pizza}\ |\ \text{Female})=\dfrac{P(\text{Pizza}\ \cap\ \text{Female)}}{P({\text{Female}})}$

From the table,

$P(\text{Pizza}\ \cap\ \text{Female)}=\dfrac{119}{1000}$

$P({\text{Female}})=\dfrac{530}{1000}$

Putting the values,

$P(\text{Pizza}\ |\ \text{Female})=\dfrac{P(\text{Pizza}\ \cap\ \text{Female)}}{P({\text{Female}})}=\dfrac{\frac{119}{1000}}{\frac{530}{1000}}=0.225$

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3 years ago

Superman wants to get as much Kinetic energy (KE) as he can when hitting a baseball. He asks you if he should use a slightly hea

AysviL [449]

Answer: Swing twice as fast

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3 years ago

Suppose William and Donald both drive the same car, and have the same

nataly862011 [7]

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4 years ago

Write the equation of a line that is perpendicular to

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Answer:

i would help but im not smart enough sorry

Step-by-step explanation:

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3 years ago

Use the drawing tools to form the correct answers on the graph.

Dmitrij [34]

Answer:

$A(-8,-3),\ B(-4,-1),\ C(0,1),\ D(2,2),\ E(6,4)\\See \ the \ diagram.$

Step-by-step explanation:

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3 years ago