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patriot [66]
3 years ago
13

Which data set has the same standard deviation as the data set 3,2,5,6,8

Mathematics
2 answers:
alisha [4.7K]3 years ago
6 0

Answer:

a) 4,3,6,7,9

Step-by-step explanation:

<em>The value of standard deviation does not get affected if we add constant number in every observation.</em>

In the given data set if we add 1 in every observation then we will get same value as given in option (a).

Thus, the standard deviation of both the observation is same.

Also, we didn't get other options by addition and subtraction of any constant value.

Further, Standard Deviation is used to measure spread of the data and it is defined as square of the distance between the observation and mean of the distribution.

anyanavicka [17]3 years ago
4 0
The answer is A) 4,3,6,7,9
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Janet has $25.37 in her bank account. She decides to purchase a video game online which costs $49.99. The bank will automaticall
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Answer:

She will owe the bank $24.62

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3 years ago
1 oz of walnuts were mixed with 4 oz of peanuts which cost $4/oz to make mixed nuts which cost $5/oz. what is the price per oz o
Zanzabum
Call w the unknwon price of the walnuts, then:

total cost of walnuts = 1oz *  w

Total cost of peanuts = 4 oz * $4/oz = $16

Total cost of nuts = 5oz * $5 /oz = $25

=> 1oz*w + $16 = $25 => w = ($25 - $16) /1oz = $9/oz

Verfify:

1oz * $9/oz + 4oz * $4/oz = $9 + $16 = $25, which is equal to 5oz * $5/oz.

Answer: $9 per oz.
3 0
3 years ago
Solve 3(x+2)+5(x+2)=64
valkas [14]

Answer:

6

Step-by-step explanation:

3x+6+5x+10=64

3x+5x+6+10=64

8x+16=64

8x=64-16

8x=48

divide both sides by 8

x=6

6 0
3 years ago
A particular dam contains approximately 1,900,000,000,000 cubic feet of water. for a week long spike flood, the dam released at
Fantom [35]

Answer:

a) How much water was released during the flood?

14878080000 cubic feet or 14,878,080,000ft³

b) What percentage of the dam was released during the flood?

0.78%

Step-by-step explanation:

a) How much water was released during the flood?

The first step would be to find out how many seconds are in a week

60 seconds = 1 minute

60 minutes = 1 hour

24 hours = 1 day

7 days = 1 week

Hence, the number of seconds in a week =

1 week × (7 days/1 week)× (24 hours/1 day )×( 60 minutes/1 hour) ×( 60 seconds/1 minute)

= 604800 seconds

Therefore, the quantity of water released per week =

604800 seconds × 24,600 cubic feet per second

= 14,878,080,000 cubic feet or 14,878,080,000ft³

b) What percentage of the dam was released during the flood?

This is calculated as quantity released during the week ÷ Quantity of water in the dam × 100%

Quantity of water released during the flood in a week = 14,878,080,000 cubic feet

Quantity of water in the dam= 1,900,000,000,000 cubic feet of water

Percentage of the dam released during the flood =

14,878,080,000 cubic feet ÷ 1,900,000,000,000 × 100

= 0.7830568421%

Approximately = 0.78%

7 0
3 years ago
Could someone please help me solve these 2 multi-step equations?
Montano1993 [528]

Answer:

1. x=5

2. x=13

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17-2=15

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5 0
3 years ago
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