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Lemur [1.5K]
3 years ago
15

Need helpp fastt plss will give brainliest to who is correct plss helpp

Mathematics
1 answer:
harina [27]3 years ago
5 0

Answer:

Percent means per- amount

And the second one is dividing.

Step-by-step explanation:

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A random sample of 5 homes in Newberry, Florida had a mean of $169,900 and a standard deviation of $21,756. Construct a 95% conf
stiv31 [10]

Answer:

D. (142886, 196914).

Step-by-step explanation:

To solve for this question, we would use t score instead of z score. The reason is because, our sample size is small.

The formula for Confidence Interval =

C.I = Mean ± t score × standard deviation/√n

n = 5 samples

Degrees of freedom = n - 1 = 5 - 1 = 4

The t score for a 95% confidence interval with degrees of freedom 5 is : 2.776

Hence,

Confidence Interval =

169,900 ± 2.776 × 21,756/√5

169,900 ± 2.776 × 9.7295789837

169, 900 ± 27009.311259

Confidence Interval

169,900 - 27009

= 142886

169, 900 + 27009.311259

= 196914

Hence, the confidence interval = (142886, 196914)

Option D is the correct answer

7 0
3 years ago
There are 60 minutes in an hour. The total number of minutes is a function of the number of hours, as shown in the table. Does t
Alexxx [7]

Answer:

Step-by-step explanation:

It represents a linear function because there is a constant rate of change.

Step-by-step explanation:

Since, if the rate of change for y ( output value ) with respect to x ( input value ) remains constant for a function then it is called linear function.

Here, number of hours represents input value and minutes represents the output value,

Now, By the given table,

The function is passing through the points (1,60), (2,120), (3,180), (4,240) and (5,300),

Also,

⇒  The rate of change output value with respect to input value remains constant,

Hence, It represents a linear function because there is a constant rate of change.

3 0
2 years ago
What does √-1.44 equal?
Artyom0805 [142]
1.2i

Hope this helps!
3 0
3 years ago
A cream is sold in a 38 gram container. the average amount of cream used per application is 2 5/7 gram. how many applications ca
aliina [53]

Answer:

The answer to the problem should be 14

4 0
2 years ago
Dave has a three-year college plan loan for $10,000. the lender charges a simple interest rate of 6%. How much interest will he
STatiana [176]
Simple Interest = Principle × time × rate 
10000 × 3 × 6% = 1800
5 0
4 years ago
Read 2 more answers
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