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LenaWriter [7]
3 years ago
15

What is the mean absolute deviation of the data set?

Mathematics
2 answers:
kari74 [83]3 years ago
7 0

Answer:

10

Step-by-step explanation:

took quiz

zzz [600]3 years ago
3 0

Answer:

The answer is 10

Step-by-step explanation:

-add all numbers in a sum

-divide by total of numbers

-use 1.5 strategy

-you get ten

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Liz Williams claims to have psychic abilities and predict the future. Anderson Cooper, a CNN personality plans to test her in hi
Katena32 [7]

Answer:

b. Because the probability of being 15 or more correct is 0.0207, it is likely that she is just guessing at the questions.

Step-by-step explanation:

-This is a binomial probability distribution with p=0.5, n=20 and x=15.

The function is expressed as:

P(X=x)={n\choose x}p^x(1-p)^{n-x}

We calculate the probability of guessing 15 or more correctly:

P(X\geq 15)=1-P(X

The probability of passing, guessing 15+ correctly, is 0.0207. This probability is very low and it is  it is likely that she is just guessing at the questions

7 0
3 years ago
Lelia has 5 1/4 hours of homework to do over the weekend. She does 2/3 of her homework on Saturday so sh can get it out of the w
dedylja [7]
Well 5 1/4 hours is 5 hours and 15 minutes and 2/3 of 5 hours and 15 minutes or 315(5*60+15) is 210
hope it helped
5 0
3 years ago
Are corresponding angles in similar figures congruent?
Gala2k [10]

Answer:

yes

Step-by-step explanation:

Only the lengths change, not the angles.

3 0
3 years ago
Who Washes? Erica and Aaron, who are siblings, have decided to use a lottery system to decide who will wash dishes every night.
Anestetic [448]

Given that Erica and AAron,are using lottery system to decide who will wash dishes every night.

They put some red and blue power chips and draw each one.  If same colour, Aaron will wash and if not same colours Erica will wash

If the game is to be fair, then both should have equal chances of opportunity for washing.

i.e. Probability for Erica washing = Prob of Aaron washing

i.e. P(different chips) = P(same colour chips)

Say there are m red colours and n blue colours.

Both are drawing at the same time.

Hence Prob (getting same colour) = (mC2+nC2)/(m+n)C2

Probfor different colour = mC1+nC1/(m+n)C2

The two would be equal is mC2 +nC2 = m+n

This is possible if mC2 =m and nC2 = n.

Or m = 2+1 =3 and n =3

That for a fair game we must have both colours to be 3.


3 0
3 years ago
FIRST TO ANSWER GET BRAINLEST <br> Solve for x. 2/3(x−7)=−2 Enter your answer in the box. x =
Alex_Xolod [135]

2/3(x−7)=−2

2(x - 7) = (-2) * (3)

2x - 14 = - 6

2x = 8

 x = 4

3 0
3 years ago
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