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Lunna [17]
3 years ago
12

In a relative frequency distribution, what should the relative frequencies add up to?

Mathematics
1 answer:
VMariaS [17]3 years ago
8 0

Answer:

A. 1

Step-by-step explanation:

The relative frequency is calculated by dividing the frequency of respective class to the total frequency. i.e R.f=f/∑f.

Hence, the relative frequencies can never be add up to total number of observations because it is computed from taking the proportion of frequency and total number of observation. The relative frequencies thus add up to 1.

For example we are given the frequencies for 3 classes as 6,4,2 and computed relative frequencies of these 3 classes are 6/12, 4/12 and 2/12.

Now adding these three relative frequencies 6/12+4/12+2/12=6+4+2/12=12/12=1.

Thus, the relative frequencies add up to 1.

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If I want to buy a pair of sunglasses and the original price is $120, how much will I pay if they are 50% off? What if they were
gogolik [260]

Answer:

$60, $90

Step-by-step explanation:

Amount paid when 50% off

=$ 120 - 50/100 * 120 = $ 120 - $60 = $60

Amount paid when 25% off

=$ 120 - 25/100 * 120 = $ 120 - $30 = $90

4 0
3 years ago
Solve the inequality. Graph the solution set. 23 + 156 > 5(3b + 1)
Elan Coil [88]

Answer:

b<58/5

Step-by-step explanation:

4 0
3 years ago
QUESTION 1) Line M passes through the points (-4, -11) and (3, 3). Line N passes through the points (5, -2) and (-6, 9). Which o
7nadin3 [17]

Answer:

Yes, lines M and N intersect because their slopes are different.

Step-by-step explanation:

First, we can start out by finding the slope of Line M and Line N. The slope formula is (y_2 - y_1)/(x_ 2- x_1)

Slope of Line M:

(3--11) / (3--4)

(3+11) / (3+4)

14/7

2

Now we know that the slope of Line M is 2.

Slope of Line N:

(9--2) / (-6-5)

11/-11

The slope of Line N is -1!

Since the slopes of Line N and M are different, they intersect. The answer is Yes, lines M and N intersect because their slopes are different.

If the slopes were the same, Line N and M would NEVER intersect because they are parallel.

Hope this helps

4 0
3 years ago
Two angles are supplementary. One angle has a measure of 44 degrees. What is the measure of the other angle?
xxMikexx [17]
If A and B are supplementary angles, then:
A+B=180º


In this case:
A=44º

44º+B=180º
B=180º-44º=136º

Anser: the measure of the other angle is 136º
7 0
3 years ago
Maria es una estudiante de la seccion 7-9 que le gusta leer mucho. Actualmente lee un libro que tiene 288 paginas, silee 12 pagi
dmitriy555 [2]

Responder:

24 días

Explicación paso a paso:

Dado que:

Total de páginas = 288

Número de páginas leídas por día = 12

Número de días que se necesitarán para leer el libro completo:

Total de páginas / número de páginas leídas por día

288/12

= 24

Por lo tanto, a María le tomará 24 días leer el libro completo, si lee 12 páginas del libro por día.

4 0
2 years ago
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