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3 years ago

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A hockey team scored 45 goals in its first 16 games. At this rate, how many goals would the team score in an 80 game season? A.

50 B. 109 C. 141 D. 225

1 answer:

Goshia [24]3 years ago

6 0

First you have to divide 45 by 16. that gives us 2.8125. then multiply 2.8125 by 80 to get 225.

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I need help on this question

Ilia_Sergeevich [38]

I think the answer is 16

3 0

3 years ago

A bank sampled its customers to determine the proportion of customers who use their debit card at least once each month. A sampl

Zinaida [17]

Answer:

(0.084,0.396)

Step-by-step explanation:

The 99% confidence interval for the proportion of customers who use debit card monthly can be constructed as

$p-z_{\frac{\alpha }{2}} \sqrt{\frac{pq}{n} }$

$p=\frac{x}{n}$

$p=\frac{12}{50}$

$p=0.24$

$q=1-p=1-0.24=0.76$

$\frac{\alpha }{2} =\frac{\0.01 }{2}=0.005$

$p-z_{\frac{\alpha }{2}} \sqrt{\frac{pq}{n} }$

$0.24-z_{0.005} \sqrt{\frac{0.24*0.76}{50} }$

$0.24-2.58(0.0604)$

$0.24-0.155832$

By rounding to three decimal places we get,

$0.084$

The 99% confidence interval for the proportion of customers who use debit card monthly is (0.084,0.396).

3 0

3 years ago

Craig went out to a restaurant for dinner. He tipped 16% of his bill, which brought the sum of the dinner bill plus the tip to $

alexira [117]

$22.50

You can get this by dividing the new total by 116%, which is how much of the bill was paid.

4 0

3 years ago

The point (-6, 4) is reflected over the x-axis.<br> What is the new point?

alexira [117]

Answer:

(-6,-4)

Step-by-step explanation:

A reflection over the x-axis changes the y variable

(x,y)--->(x,-y)

3 0

3 years ago

Read 2 more answers

If the probability that the Islanders will beat the Rangers in a game is 2/7, what is the probability that the Islanders will wi

Helga [31]

0.1328 is the probability that the Islanders will win exactly zero out of six games in a series against the Rangers.

<u>Step-by-step explanation:</u>

Given data is that probability the islanders will beat the rangers in a game is $\frac{2}{7}$ .

So, probability that the islanders will not beat the rangers in the game is = $1-\frac{2}{7}=\frac{5}{7}$

Let, x be the favorable outcome as,

x = no. of times islanders win the game

Probability of success (p) = $\frac{2}{7}$

Probability of failure (q) = $\frac{5}{7}$

So, the probability of x would be,

$x = n C_{r} \times(p)^{r} \times(q)^{n-r}$

$P(x=0) = 6 C_{0} \times\left(\frac{2}{7}\right)^{0} \times\left(\frac{5}{7}\right)^{6}$

$P(x=0) = 1 \times 1 \times \frac{(15625)}{117649} = 0.13281$

5 0

3 years ago