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11111nata11111 [884]
2 years ago
7

What’s variance and how do I figure it oit

Mathematics
1 answer:
Andreas93 [3]2 years ago
5 0
<h2>Answer:</h2>

variance measures variability from the average or mean. It is calculated by taking the differences between each number in the data set and the mean.','.

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This spinner is spun 36 times. The spinner landed on A 6 times, on B 21 times, and on C 9 times. Compute the empirical probabili
Kruka [31]

Answer: 7/12

Step-by-step explanation:

number of times it landed on A = 6

number of times it landed on B = 21

number of times it landed on C = 9

Total number = 36

The empirical probability that the spinner will land on B is given by

P(B) = number of times it landed on B / Total number , that is

p(B) = 21/36

P(B) =7/12

Note: Empirical means verifiable by observation or experience rather than theory and it was verified that it landed on B 21 times.

6 0
3 years ago
The value of 33 + 42 = ___.
frez [133]

Answer:

75

Step-by-step explanation:

We line up the tens place of 33 and 42 as well as the ones place so that it looks like:

33

+42

--------

Then we add first the ones, which is 3 + 2 for 5. Then we add the tens together, 3 + 4 is 7. We put the five first since its in the ones place and the 7 second since its in the tens place for 75.

6 0
3 years ago
Read 2 more answers
Jeanne thinks that x+x is the same as x•x. Is this true? Why? Why not?
NARA [144]
Generally, x <span>• x is accepted to mean "x times x" or "x multiplied by x"

and x+x means "x plus x" or "x added to x"

let's try by subsituting numbers for them
if we can find one case where the statement "x+x is the same as x</span><span>•x" is false, then it is not true


let's try x=4
x+x=x</span><span>•x
4+4=4</span>•<span>4
8=16
false



so it is not true
(x+x is equal to 2x, so therefor if we were to solve 2x=x</span><span>•x, we would get that it is only true for x=2 and x=0)

it is not always true
</span>
6 0
3 years ago
Read 2 more answers
JOD, hele he earns $8 per hour. His employer always rounds up to the nearest quarter of an hour. For example, if
Nesterboy [21]

Answer:

where is the question at?

3 0
2 years ago
Simplify to create an equivalent expression. 8(10-6q)+3(-7q-2)}8(10−6q)+3(−7q−2)
prisoha [69]
Answer: 3312q^2 - 9093q + 5914

Step-by-step-explanation:
7 0
3 years ago
Read 2 more answers
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