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sineoko [7]
2 years ago
13

A sample of customers from Barnsboro National Bank shows an average account balance of $315 with a standard deviation of $87.A s

ample of customers from Wellington Savings and Loan shows an average account balance of $8350 with a standard deviation of $1800.Which statement about account balances is correct?A) Barnsboro Bank has more variation.B) Wellington S&L has more variation.C) Both have the same variation.
Mathematics
1 answer:
cestrela7 [59]2 years ago
8 0

Answer:

A) Barnsboro Bank has more variation.

Step-by-step explanation:

Coefficient of Variation:

The coefficient of variation is given by the division of the standard deviation by the mean.

In this question:

The account balance with the highest coefficient of variation has more variation.

Barnsboro National Bank shows an average account balance of $315 with a standard deviation of $87.

So

cv = \frac{87}{315} = 0.2762

Wellington Savings and Loan shows an average account balance of $8350 with a standard deviation of $1800.

So

cv = \frac{1800}{8350} = 0.2156

Barnsboro Bank has the higher cv, so more variation, and the answer is given by option A.

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Lauren keeps records of the distances she travels in a taxi and what she
Scrat [10]

Answer:

m = 2.25

Step-by-step explanation:

In a standard equation of y = mx + b, m is the slope. In this situation, the slope is the price paid per mile.

To find the slope of the line, we use the slope formula: (y₂ - y₁) / (x₂ - x₁). I will use the points (3, 8.25) & (11, 26.25)

Plug in these values:

(26.25 - 8.25) / (11 - 3)

Simplify the parentheses.

= (18) / (8)

Simplify the fraction.

18/8

= 9/4

This is your slope.

In a dollar value, it is 9/4 of a dollar, or $2.25 per mile.

3 0
3 years ago
Can you please help do not understand
o-na [289]
The first blank on the left side should be 0 I think
7 0
2 years ago
You build a fence around garden that measures 10 x 15 feet; how many feet of chain link fence will you need?
Neporo4naja [7]

Answer:

50 feet

Step-by-step explanation:

We have to find the perimeter of the fence surrounding the garden.

2l+2w

2(15) + 2(10)

30 + 20

= 50

50 feet will be needed.

6 0
3 years ago
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When a certain valve is open, 281 gallons go through it in one hour. The number of gallons that would go through in 94 hours is?
yarga [219]
281 gallons/ 60 min= 4.683 gallon per min
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8 0
2 years ago
At a fish market, a pound of salmon costs $12 and a pound of shrimp costs $18. Mrs. Donnelly wants to buy 2 1/3 pounds of salmon
Semmy [17]

Answer:

Yes and she would have $2 left over because all the food costs $91.

Step-by-step explanation:

We should set up an equation so that everything makes sense. A calculator would be wise for this problem, but I am going to lay it out anyhow.

We should convert the mixed numbers to improper fractions to not be confused. 3 1/2 becomes 7/2 or 3.5 and 2 1/3 becomes 7/3.

From your wording, we can assume that the money Mrs. Donnelly has is either greater than or equal to $93.

Thus, we have 12*(7/3) + 18*(7/3) is equal to or greater than 93 (this is an inequality).

The math shows that the food costed 91 and so she only has $2 left.

7 0
3 years ago
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