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3 years ago

GIVING BRAINLIEST

Mathematics

1 answer:

konstantin123 [22]3 years ago

8 0

Answer:

A (-7,5) . B (10,9) . C (-4,-11

Step-by-step explanation:

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Please help me with this on the picture.

dimaraw [331]

Answer:

year 7 mean: ≈7.714

year 8 mean: 14

Step-by-step explanation:

mean = sum / number of observations

number of observations = 5, as there are 5 bars for each year

year 7 is the bar on the left for each day

observations for year 7:

5, 8, 9, 13, 19 (left to right)

sum = 5 + 8 + 9 + 13 + 19 = 54 for year 7

mean for year 7 = 54 / 7 ≈ 7.714

observations for year 8 (left to right):

10, 11, 18, 12, 19

sum = 10 + 11 + 18 + 12 + 19 = 70

mean = 70 / 5 = 14

7 0

2 years ago

I need help 22 and 23 please

malfutka [58]

Question 22
Is 4 , A Quarter

6 0

3 years ago

the candy from the estimation jar is being shared equally between the 21 second grade students there are 120 Skittles to share h

Studentka2010 [4]

120/21= 5.71
Students wouldn't be splitting a Skittle, so everyone would get 5.

3 0

4 years ago

John ordered three lobsters.the fist one weighed 3.2 pounds,the second weighted 1.75 pounds,the third 1.9 pounds what is the tot

Nadusha1986 [10]

Add them all up, 3.2 + 1.75 + 1.9 = 6.85

The total weight is 6.85 pounds.

4 0

3 years ago

Identify the expression for calculating the mean of a binomial distribution

TEA [102]

Option C: np is the expression used for calculating the mean of a binomial distribution.

Explanation:

From the options, we need to determine the expression that is used for calculating the mean of a binomial distribution.

Option A: npq

The variance of the binomial distribution can be calculated using the expression npq.

Hence, Option A is not the correct answer.

Option B: $\sqrt{npq}$

The standard deviation of the binomial distribution can be calculated using the expression $\sqrt{npq}$

Hence, Option B is not the correct answer.

Option C: np

The mean of the binomial distribution can be calculated using the expression np

Hence, Option C is the correct answer.

Option D: $\sum\left[x^{2} \cdot P(x)\right]-\mu^{2}$

The mean of the binomial distribution cannot be determined using the expression $\sum\left[x^{2} \cdot P(x)\right]-\mu^{2}$

Hence, Option D is not the correct answer.

8 0

4 years ago