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3 years ago

The steam and leaf plot list the scores earned by students on a science test

Mathematics

1 answer:

Veseljchak [2.6K]3 years ago

6 0

Answer:

9 students

Step-by-step explanation:

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A survey of the 12th grade students at Gaffigan High School found that 84% of the seniors have their driver’s licenses, 16% of s

Anna35 [415]

Use the formula for the conditional probability:

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

Consider such events

A - a senior takes the bus to school every day;

B - a senior has a driver’s license,

then

$Pr(A\cap B)=0.14$ ,

$Pr(B)=0.84$

and

$Pr(A|B)=\dfrac{0.14}{0.84} =\dfrac{1}{6}\approx 0.16666.$

In percent this is nearly 17%.

Answer: correct choice is B.

5 0

3 years ago

Read 2 more answers

At Noise Pollution Cellular, plan A is $30.00 per month and $5.00 for every gigabyte of data. Plan B is $50.00 per month and $2.

Verdich [7]

We need to find an equation for each situation. Let x be the number of GB of data used.

Statement 1: At Noise Pollution Cellular, plan A is $30.00 per month and $5.00 for every gigabyte of data used.

Plan A cost equation $C(x) = 30 + 5x$

Statement 2: At Noise Pollution Cellular, Plan B is $50.00 per month and $2.00 for every gigabyte of data used.

Plan B cost equation $C(x) = 50 + 2x$

Number of GB of data for which both the plan A and plan B cost are same.

$30+5x=50+2x \\ Subtracting \; 2x \; \& \;30\; on\; both\; sides\; \\ \\30+5x-2x-30=50-30+2x-2x \\Combining \; like \; terms\\\\3x=20\\Dividing \; like \; terms\\\\ \frac{3x}{3}=\frac{20}{3} \\ \\x=6\frac{2}{3}$

When

$x=6 \\\\ Plan \; A \; Cost = 30+5(6)=30+30=\$60\\ Plan \; B \; Cost = 50+2(6)=50+12= \$72\\ \\ From \; 5\leq x\leq 6\frac{2}{3} , \; Plan \; A \; is \; Cheaper!$

When

$x = 7\\\\ Plan \; A \; Cost= 30 + 5(7) =30+35 = \$65\\\\Plan \; B \; Cost = 50 + 2(7)=50+14=\$64 \\ \\ From \; 6\frac{2}{3} \leq x \leq 8, \; Plan\; B \; is \; Cheaper !$

6 0

4 years ago

Read 2 more answers

A monopolist's marginal cost curve shifts up, but the firm's demand curve remains the same and the firm does not shut down. Comp

Stells [14]

Answer:

(1)raise, (2)decrease

Step-by-step explanation:

A monopolist's marginal cost curve shifts up, but the firm's demand curve remains the same and the firm does not shut down. Compared with the condition before the increase in marginal costs, the monopolist will raise its price and decrease its level of production.

Marginal cost is the additional cost incurred when one more unit of the output is produced. It is a J-shaped curve, which initially decreases, reaches its minimum and then starts increasing.

Marginal cost is an important factor in economic theory because a company that is looking to maximize its profits will produce up to the point where marginal cost (MC) equals marginal revenue

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3 years ago

There are 3 and 3/4 cups of soup in a container how many whole 1/2 cup servings are in the container

alukav5142 [94]

Answer: 9/2 servings

Step-by-step explanation: what I did was broke 3 and 3/4 down into a smaller fraction which =9/4 then divided it by 1/2= 9/2

denominator is half

5 0

3 years ago

Could someone tell me if it's okay? Plz

Leokris [45]

Answer:

this app is freakin broken you agree

7 0

3 years ago