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3 years ago

A value two standards deviation from the mean is more likely to occur than a value three standard deviations from the mean.

1 answer:

6 0

This is True - A.

This is true because values which are less far apart from the mean; two standards deviations being closer than three standard deviations from the mean, are also more likely to occur. This is best illustrated when viewing a Gauss curve or a normal bell curve.

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There are five one-digit numbers in a set of data . The mean of the number is 3 A mode is 1 the median is 4 what are the numbers

malfutka [58]

Answer: the missing numbers are 6 and 3

Explanation:

Given that mean of five numbers is 3

Mode is 1, means that 1 appeared more than once in the data set

And median is 4, means the middle number is 4

Therefore, it can be represented as 1, 1, 4, p, q

Where p and q are the missing numbers

Mean (3) = 1 + 1+ 4+ p+ q/5

3 =6 + p + q/5

We cross multiply to give:

5 x 3 = 6 + p + q

15= 6 + p +q

Make p + q the subject :

p + q = 15 - 6

= 9

The sum of the two missing numbers equals 9, we can think of two numbers that equals 9.

However, we cannot use 5 and 4, because we already have the mode given as 1

We therefore use 6 and 3, 7 and 2 or 8 and 1

I hope this helps, please mark as brainliest answer.

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3 years ago

A Child Development Associate (CDA) certificate is initially valid for 3 years. After that, it needs to be renewed every

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<span>The question says.' a child development associate certificate is initially valid for 3 years. After that it needs to be renewed every............. The correct option is D. The certificate expire after every three years and thus has to be renewed every three years, according to the latest government directive.</span>

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3 years ago

Gilbert wanted to study only students who do very well in class because such students would best help him test his theory. He as

____ [38]

Answer:Purposive sampling

Explanation:

A purposive sampling :

A selection of the participants is done by looking at their characteristics as the overall group or population and dependent on the purpose of the study.

When one needs to tackle a target question fast without the worrying factor of proportinality this is a good sampling method to be chosen.

It can be divided into heterogeneous purposive sample and homogeneous sample .

Heterogeneous tackles various issues which relate to a particular phenomenon. Many number of participants are questioned in order to receive a broader view of the issue in question.

Homogeneous

A homogeneous purposive sample deals with participants that have similar characteristics. The above purposive sample can be said to be a homogeneous one because the professor has an interest on the students who are all high achievers and that is their similar characteristic.

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3 years ago

The largest experimental statistical study ever conducted is believed to be for

natka813 [3]

<span>The largest experimental statistical study that has happened in the past and was conducted for is the Public Health Service Experiment that has happened in the year 1954, this experiment has been conducted because of the Salk Vaccine, which is also known as the Polio Vaccine.</span>

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3 years ago

PLS ANSWER ASAP, 100 POINTS

Lemur [1.5K]

Answer:

1a2c3d4b that's my thinking

5 0

1 year ago

Read 2 more answers