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valentina_108 [34]

3 years ago

15

A die is rolled and a coin is flipped simultaneously. the number rolled on the die and whether the coin lands heads or tails is

recorded. how many outcomes are in the sample space?

1 answer:

KengaRu [80]3 years ago

7 0

12 outcomes

1-heads or tails
2-heads or tails and so on

6*2=12

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Alex17521 [72]

Answer:

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Step-by-step explanation:

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3 years ago

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What is the standard deviation of the following data set rounded to the nearest tenth? 56 ,78 ,123 , 34, 67, 91, 20

quester [9]

Answer:

The standard deviation of the following data set is 32.2

Step-by-step explanation:

step 1

Find the mean

we have

$[56,78,123,34,67,9,20]$

Sum the data and divided by the number of elements

$[56+78+123+34+67+91+20]/7=469/7=67$

step 2

For each number: subtract the Mean and square the result

$[(56-67)^{2},(78-67)^{2},(123-67)^{2},(34-67)^{2},(67-67)^{2},(91-67)^{2},(20-67)^{2}]$

$[121,121,3,136,1,089,0,576,2,209]$

step 3

Work out the mean of those squared differences

$[121+121+3,136+1,089+0+576+2,209]/7=1,036$

This value is called the "Variance"

step 4

Take the square root of the variance

$standard\ deviation=\sqrt{1,036}=32.2$

6 0

3 years ago

Here is a picture of a circle. Each square represents 1 square unit.

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Answer:

because there isnt any full circles. in order to have a square you need 4 corners .they all only have 1 inside that circle.

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3 years ago

If DE = 4x - 1, EF = 9, and DF = 9x - 22, find the value of x.

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Step-by-step explanation:

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Step-by-step explanation:

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Hope this Helps!

Stay Safe!

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3 years ago