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Artyom0805 [142]
3 years ago
12

A researcher records the time (in seconds) that participants arrive late for a scheduled research study. Assuming these data are

normally distributed, which measure of central tendency is most appropriate to describe these data? mean median mode range
Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
4 0

Answer:

mean

Step-by-step explanation:

Normal distribution curves Is a distribution curve having different mean values with a standard deviations  

the correct option: mean

A normal distribution curve is standardized as follows:

(a) The mean value of the unstandardized curve is made the origin, thus making the mean value, x, zero.

(b) The horizontal axis is scaled in standard deviations. This is done by letting z= x−x/ σ , where z is called the normal standard variate, x is the value of the variable, x is the mean value of the distribution and σ is the standard deviation of the distribution.

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Two triangles are similar with a scale factor of 3. The preimage triangle has a base of 7 inches and a height of 10 inches. What
vaieri [72.5K]

Answer:

<u>The area of the larger triangle is 315 inches²</u>

Step-by-step explanation:

1. Let's review all the information provided for answering the questions properly:

Pre-image triangle has a base of 7 inches and a height of 10 inches

Scale used : Factor of 3

2. What is the area of the larger triangle??

For calculating the area of the larger triangle, we use the scale this way:

Base = 7 inches * 3

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Height = 10 inches * 3

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Area of the larger triangle = 1/2 (Base * Height)

Area of the larger triangle = 1/2 (21 * 30)

<u>Area of the larger triangle = 630/2 = 315 inches²</u>

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