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Firlakuza [10]
3 years ago
13

A student can get paid $12 per hour to run a three-hour economics tutoring session, or he can take a five-hour shift helping at

his mom’s store that pays $15 per hour. What is the opportunity cost of working at the store? $12 $75 $36 $45 $60
Mathematics
1 answer:
Blababa [14]3 years ago
3 0
It’s is $75 because he gets paid $15 an hour for 5 hours so 15x5=75
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Angelina_Jolie [31]
If we ask 500 individuals whether they have credit card and if we consider the probability of people having a credit card being normally distributed, then we assume that, considering 30% do not have a credit card, everyone who is within 1SD of the mean will have a credit card, while the remaining ~15% on either tail of the distribution do not. 
4 0
4 years ago
What is the average rate of change from x = 0 to x = 2?
mixer [17]

Answer:

Step-by-step explanation:

I mean average rate of change literally means rise / run or slope

So you rise 0 and run 2

0

-- = 0 = rate of change (wow that's a nice rate of change lol XD)

2

7 0
3 years ago
4.48 Same observation, difference sample size: Suppose you conduct a hypothesis test based on a sample where the sample size is
Lemur [1.5K]

Answer:

P-value is lesser in the case when n = 500.

Step-by-step explanation:

The formula for z-test statistic can be written as

z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n} } } =\frac{(x-\mu)\sqrt{n}}{\sigma}

here, μ = mean

σ= standard deviation, n= sample size, x= variable.

From the relation we can clearly observe that n is directly proportional to test statistic. Thus, as the value of n increases the corresponding test statistic value also increases.

We can also observe that as the test statistic's numerical value increases it is more likely to go into rejection region or in other words its P-value decreases.

Now, for  first case when our n is 50 we will have a relatively low chance of accurately representing the population compared to the case when n= 500. Therefore,  the P-value will be lesser in the case when n = 500.

6 0
3 years ago
Find the probability.
kvv77 [185]

Answer:

7/36

Step-by-step explanation:

1 die has 6 faces

When two dice are rolled, the total number of outcomes

= 6 × 6 = 36

The Probability of having(5) =

(1 & 4), (2 & 3) , ( 3 & 2), (4 & 1)

= 4

The probability of having (10) =

(5 & 5), (4 & 6) , ( 6 & 4)

= 3

The probability that the score on the dice is either 5 or 10.

P(5) + P(10)

= 4/36 + 3/36

= 7/36

8 0
3 years ago
Lindsay invested $4500 at 4% interest compounded annually.
goldfiish [28.3K]

Answer:

\$2,161.1

Step-by-step explanation:

we know that    

The compound interest formula is equal to  

A=P(1+\frac{r}{n})^{nt}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

t=10\ years\\P=\$4,500\\ r=0.04\\n=1  

substitute in the formula above  

A=\$4,500(1+\frac{0.04}{1})^{1*10}  

A=\$4,500(1.04)^{10}

A=\$6,661.10    

Find the interest

I=A-P

I=\$6,661.10-\$4,500=\$2,161.1

5 0
3 years ago
Read 2 more answers
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