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Step2247 [10]
3 years ago
15

A researcher has collected the results of a survey where the participants were asked how many hours of T.V. they watch each day.

The researcher tallies the frequencies for each category and computes mean number of hours watched. She then creates a histogram to help illustrate the overall distribution. Which of the five steps of the statistical process did the researcher apply?
a. Design the Study
b. Collect Data
c. Describe the Data
d. Make Inferences
Mathematics
1 answer:
Zina [86]3 years ago
7 0

Answer: c. Describe the data

Step-by-step explanation:

Description of data involves the use of descriptive statistics to analyse/summarize a set of data (from samples) generated during a research.

Some of the process involved in the description of data involves the measure of central tendency ( averages, mean, median mode) and also measure of dispersion and graphing. Therefore, the case above described the data collected.

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A valid license plate in Xanadu consists of two capital letters followed by three digits. How many valid license plates are poss
tatiyna

The  valid license plates are possible = 676,000 possibilities

<h3>What is permutation and combination?</h3>

In mathematics, there are two alternative methods for dividing up a collection of components into subsets: combination and permutation. The subset's components can be arranged in any sequence when used together. The subset's components are given in a permutation in a certain order.

<h3>According to the given information:</h3>

There is no prohibition on using the same letters or numbers more than once, therefore all 26 letters of the alphabet and all 10 numerals are permissible choices.

There are 26 options if the initial answer is A:

AA, AB, AC,AD,AE ...................................... AW, AX, AY, AZ.

There are 26 options if the initial answer is B:

BA, BB, BC, BD, BE .........................................BW, BX,BY,BZ

So,

The first letter can be one of 26 options, and the second letter can be one of 26 options. There are a variety of 2 letter combinations, including:

26 x 26 = 676

For the three digits, the same holds true.

The first, second, and third options each have ten options available:

10  × 10 × 10 = 1000

Thus, there are several options for a license plate with two letters and three digits:

26 x 26 x 10  × 10 × 10 =  676,000 possibilities.

The  valid license plates are possible = 676,000 possibilities.

To know more about permutation and combination visit:

brainly.com/question/13387529

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8 0
1 year ago
Solve the equation.<br> 4s=2/5<br><br> s=<br> (Type a whole number, fraction, or mixed number.)
BabaBlast [244]

Answer:

s = 1/10

Step-by-step explanation:

First, divide both sides by 4 to get s by itself.

(2/5) / 4 = 1/10

s = 1/10

6 0
3 years ago
Pleaseee help me solve the function
schepotkina [342]

Answer:

f(x) =  \frac{3 {(2)}^{2} - 2 }{2(2) + 3}  =  \frac{12 - 2}{7}  =  \frac{10}{7}

3 0
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Write an equation in point-slope form for the line through the given point with the given slope.
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Answer: A

Step-by-step explanation:

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You are driving from Kansas City to Denver. The distance (in miles) you
ad-work [718]

Answer:

The slope is 70

The slope represents the speed of your car

Step-by-step explanation:

The slope is 70, y = mx + c, where m is the slope

The slope represents the speed of your car

speed = distance/time

speed x time = distance

As y represents the distance you travel, x is the time, slope is the speed, you get the distance travelled.

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