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2 years ago

14

The mean of a distribution of scores is 49, with a standard deviation of 16. Calculate the standard error for a distribution of

means based on samples of 30 people.

1 answer:

PolarNik [594]2 years ago

3 0

the standard error for a distribution is 33

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2800 music fans attend a concert. They travel in coaches. Each coach has 53 seats. How many coaches are required?

Reptile [31]

Answer:

52

Explanation:

step by step

=2800/53

=52.83

=52

3 0

3 years ago

a ball is thrown straight downward with a speed of 0.80 meters per second. what is the speed of the ball 0.60 seconds after it i

san4es73 [151]

The speed of the ball 0.60 seconds after it is released is 6.8 m/s.

Newton's law of motion is given by:

v = u + gt

where v is the final velocity, u is the initial velocity, g is the acceleration due to gravity and t is the time.

Given that:

u = 0.8 m/s, g = 10 m/s², t = 0.6s. Hence:

v = 0.8 + 10(0.6)

v = 6.8 m/s

Therefore the speed of the ball 0.60 seconds after it is released is 6.8 m/s.

Find out more at: brainly.com/question/8648874

7 0

3 years ago

How is the modern department of defense different from the old department of war?.

xeze [42]

How is the modern Department of Defense different from the old Department of War? It is a cabinet department and not an independent executive agency. It was not created by any act of Congress, unlike the Department of War. It contains sub-departments for the Air Force, Army, and Navy.

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2 years ago

Learning task 3 convert the sentences in learning task 2.

Natalija [7]

The correct adjectives that can be used in the sentences will be:

He likes participating in the games. He is so <u>enthusiastic</u>.
Our exam yesterday was <u>perplexing</u>.
My cousin was so <u>sanguine </u>that we slept very late last night.
Maria was <u>thrifty </u>for buying these second-hand bags.

Jayson uses only a metal straw to drink. He is <u>weird</u><u>.</u>
She has grown up to be a <u>book geek</u> since she just likes to study all the time.
Arang, our toddler neighbor, asks a lot of questions. She is so <u>inquisitive</u>.

Jessica stays late every night reading books about philosophy. She has become more <u>geriatric </u>than her age.
The gifts Nathan gave to his workers were <u>lavish</u>.
Our new teacher is <u>placatory</u>.

<h3>What is an adjective?</h3>

It should be noted that adjectives are the words that are used to describe nouns or pronouns.

In this case, the adjectives used are important in turning the sentence into grammatically correct positive statements.

Learn more about adjectives on:

brainly.com/question/550822

4 0

3 years ago

If a sudden ringing sound distracts an advertisement reader, and it prevents him from recalling the message, this unplanned even

mezya [45]

A) Response.

B) Encoding.

C) Decoding.

D) Feedback.

E) Noise.

Noise.

Answer: Option E.

<u>Explanation:</u>

A communication which is going on effectively may be interrupted or the person may get distracted if there is any kind of noise which leads to removal of the attention of the person.

The noise effect both perception of the communication encoder and decoder both. The noise can be psychological, physical, semantic and physiological. These sounds are subtly affected by noise.

3 0

4 years ago