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3 years ago

How many different pairs of classmates can you choose from six classmates?

Mathematics

1 answer:

il63 [147K]3 years ago

4 0

Answer:

15 pairs

Step-by-step explanation:

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What is the trapezoid enter your answer in the box 4,5,17,5

xenn [34]

Answer:

88unit^2

Step-by-step explanation:Area=

1/2(17+27)*4

Area=88unit^2

7 0

3 years ago

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According to a survey conducted by an environmental organization, the probability that an eligible voter cares strongly about en

Alina [70]

Answer:

The probability that the person cares strongly about environmental issues but does not vote regularly is P=0.33.

Step-by-step explanation:

We have:

Probability that the voter cares for the environment P(E)=0.63

Probability that the voter votes regularly P(R)=0.51

Probability that the voter votes regularly and cares for the environment P(R,E)=0.30

We have to calculate the probability that the voter cares for the environment but does not vote regularly P(not R, E).

We know that the probability that the voter cares for the environment is 0.63, and is divided between the ones that vote regularly and the ones that don't:

P(E)=P(R,E)+P(not R,E)=0.63

We also know that the probability that the voter votes regularly and cares for the environment is P(R,E)=0.30. Then:

P(E)=0.30+P(not R,E)=0.63

P(not R,E)=0.63-0.30=0.33

The probability that the person cares strongly about environmental issues but does not vote regularly is P=0.33.

6 0

3 years ago

Can you help me because I’m stuck!

oee [108]

Answer:

u is (0,2.3) v is (-2,1.1) w is( -4,-1) x is (2.5,0) Y is (2,-1.5) Z (-1.5,-3)

Step-by-step explanation:

you start with the x axes then follow with the y

6 0

3 years ago

Show equation has a slope of -3 and a y-intercept of 8

Anvisha [2.4K]

Answer:

y=-3x+8

Step-by-step explanation:

8 0

3 years ago

Students in a statistics class conduct a survey to estimate the mean number of units students at their college are enrolled in.

WINSTONCH [101]

Answer:

True

Step-by-step explanation:

The margin of error of a confidence interval is given by:

$M = z*\frac{\sigma}{\sqrt{n}}$

In which z is the critical value related to the confidence level, $\sigma$ is the standard deviation of the population and n is the size of the sample.

So as n increases, the margin of error decreases, that is, the interval gets narrower.

The students could produce a narrower confidence interval by increasing the sample size to 100.

From the explanation above, the answer is true.

3 0

3 years ago

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