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lozanna [386]
3 years ago
11

A recent survey determined the IQ score of a random selection of residents of Alaska. The accompanying relative frequency distri

bution table summarized the results.
Identify the class width for the given relative frequency distribution.

Mathematics
1 answer:
ycow [4]3 years ago
4 0

Answer:

The class width is 20

Step-by-step explanation:

In a frequency or a relative frequency distribution the class width is calculated as the difference between the lower or upper class limits of consecutive classes. A point to note is that all the categories or classes usually have the same class width.

We use the first two classes to calculate the class width by using their respective upper limits;

Class width = 89 - 69

Class width = 20

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DochEvi [55]
55 if it's just addition
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3 years ago
Categorical(qualitative) or quantitative. Indicate whether quantitative data are continuous or discrete.
Levart [38]

Answer:

1. Gender - qualitative

2. Age - Quantitative (Discrete)

3. Grade point Average - quantitative (Continuous )

4. Number of courses currently enrolled - quantitative (discreet)

5. Enrollment Status - qualitative

Step-by-step explanation:

Qualitative variables are those which are non-numeric, usually made up of strings or words. The quantitative variables are numeric, usually composed of digits and numbers.

Discreet variables have a finite or limited number of values which are countable as opposed to continuous variables with a non-finite range and hence, uncountable.

Gender is a qualitative variable as it is composed of non-nemeric labels which could be either Male or Female.

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Grade point Average is a quantitative and continuous variable due to its numeric nature and the fact that it can take up an infinite number of possible values including decimal values.

Number of courses enrolled is numeric can take a finite number of values, hence, it is discreet.

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Part time or full time.

3 0
3 years ago
Help me with this question <br>I will mark brainlist <br>no web link <br><br>Solve :-<br>9n²-64=0​
Archy [21]
Factorize

(3n + 8) (3n - 8) = 0
3n + 8 = 0 and 3n - 8 = 0

Solve both for n

3n + 8 = 0
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3n - 8 = 0
3n = 8
n = 8/3

Therefore n = -8/3 and n = 8/3
6 0
2 years ago
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
How to sovle <br> (x+1/x)^2
Slav-nsk [51]

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Hope you could get an idea from here.

Doubt clarification- use comment section.

4 0
2 years ago
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