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ycow [4]
2 years ago
9

Find the range and standard deviation of the set of data. 210, 213, 216, 219, 222, 225, 228

Mathematics
1 answer:
cestrela7 [59]2 years ago
3 0

Answer:

range = 18 and SD = 6

Step-by-step explanation:

range = max - min

= 228 - 210

= 18

FOR STANDARD DEVIATION * USE A SCIENTIFIC CALCULATOR THEY WON'T PENALIZE YOU*

follow these steps:

1. press mode then STAT

2. then press 1-VAR

3. put all the numbers on the table in ascending order

4 after press AC

5. press shift then 1

6. you will see many things but we are only interested in standard deviation, press *Var*

7. then select the standard deviation sign and press the equal sign

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Peter and Mary take turns throwing one dart at the dartboard. Peterhits the bulls eye with probabilitypand Mary hits the bullsey
EastWind [94]

Answer:

P(Mary) = (1 - p) * r

Step-by-step explanation:

Given

p \to Peter hits

r \to Mary hits

Required

The probability that Mary wins

From the question, we understand that Peter throws the first.

If Mary is to win, then Peter has to lose his throw

Using the complement rule, the probability that Peter misses is:

p' = 1 - p

So, the probability that Mary wins is:

P(Mary) = p' * r

This gives:

P(Mary) = (1 - p) * r

6 0
3 years ago
Josephine has a rectangular garden with an area of 2x2 + x – 6 square feet. A rectangle labeled 2 x squared + x minus 6 Which ex
GalinKa [24]

Answer:

2x^2 + x - 6 = rectangular garden: <u><em>length = 2x – 3 feet; width = x + 2 feet</em></u>

Step-by-step explanation:

(2x - 3)(x + 2) = 2x^2 + x - 6 =

2x^2 + 4x - 3x - 6 = 2x^2 + x - 6 =

2x^2 + x - 6

You get the original equation from the two sides multiplied. :)

Hope this helps, have a good day.

7 0
3 years ago
Read 2 more answers
49 + (-18) + (-23) = r (r=
fgiga [73]

Answer:

Exact form : r=2squareroot2, -2squareroot2

Decimal form : r=2.8284212...,-2.82842712....

Step-by-step explanation: Take the root of both sides and then solve.

Hope this helps you out.

3 0
3 years ago
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How many groups of 100 can you take out of 941 when diving by 3?
Semenov [28]

Answer:

300 times

Step-by-step explanation:

when you divide 941 by 3, you have to divide it into the hundreds place first.

3 fits into 900 (it's the hundreds place) 300 times

to check:

3 * 300 = 900  

3 0
3 years ago
A square in the board below and a letter in the word ATTENTION is chosen at
kolezko [41]

Answer:

4 /15

Step-by-step explanation:

From the number cube :

Count of Numbers greater than 4 = 16

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P(number greater than 4) = 16 / 20 = 4/5

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Count of T's in attention = 3

P(choosing T) = 3 / 9 = 1/3

P(greater than 4, then T) = 4/5 * 1/3 = 4 /15

5 0
3 years ago
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