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2 years ago

!!!!! ITS RIGHT HEREE HELPPP

Mathematics

1 answer:

Softa [21]2 years ago

3 0

Answer:

Pretty sure it is B sorry if I am wrong :)

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A sample of 49 observations is taken from a normal population with a standard deviation of 10. the sample mean is 55. determine

Anna35 [415]

The answer I think is D.

3 0

2 years ago

Four members from a "55"person committee are to be selected randomly to serve as chairperson, vice-chairperson, secretary, an

liq [111]

Answer:

8,185,320 different leadership structures

Step-by-step explanation:

Since the order at which the members of the committee are chosen matters, this is a permutation of 4 out 55 people and it is given by:

$n=\frac{55!}{(55-4)!}=55*54*53*52 \\\\n=8,185,320$

8,185,320 different leadership structures are possible.

3 0

2 years ago

A store sells a certain digital camera model for $108. During a special promotion, the camera is discounted by 30%. What is the

Pavel [41]

Answer:

discount=108$-$32.4=75.6

3 0

2 years ago

Please help asap !!!!!

Rashid [163]

Answer:

$\dashrightarrow \: { \tt{3.{ \bar{42}, \: \: 0, \: \: \frac{17}{9}, \: \: \frac{7}{3} , \: \: - 6, \: \: 8 }}}$

Step-by-step explanation:

• A rational number is a number which can have a denominator i.e fraction, integers [ have denominator of 1 ]

6 0

2 years ago

Read 2 more answers

Answer the two questions below

STALIN [3.7K]

Answer:

3: No

4: 25

Step-by-step explanation:

3: It won't because not everyone is the same height and there will be variation in the mean height.

4: A larger sample size will give a more accurate representation of the population, where as a sample size of 5 is much more likely to have a higher percentage of outliers, and each outlier matters much more in finding the mean. In a sample size of 25, each outlier matters much less.

8 0

1 year ago