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Nastasia [14]
3 years ago
6

Plz help me plz I really need help

Mathematics
1 answer:
Zolol [24]3 years ago
3 0

Step 1: 198 ×\frac{1}{3} = 66, the number of men who left the party

Step 2: 256×\frac{1}{4}= 64, the number of women who left the party

66+64=130

Since 130 is the number of people that left, you would subtract it from the total number of people at the party originally.

198+256=454

454-130=325

So, 325 people are left at the party

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4 0
2 years ago
In a city with a population of 1 million, 500 people have been diagnosed with cancer, whereas the rest of the people do not have
Leni [432]

Class distribution is considered to be normal using normal approximation to binomial.

A frequency distribution is a table that shows classes or intervals of data with a count of the number in each class.

Given :

In a city with a population of 1 million

i.e Population size (N) = 1 million = 1000000

From which 500 people have been diagnosed with cancer

Let X : No. of people  have been diagnosed with cancer

X = 500

Population proportion (p) :

p = XNp =5001000000p = 0.0005

So , the proportion of people who do not have cancer (q)=1-p

                                                                                               =1-0.0005

                                                                                               =0.9995

Here the distribution of X is Binomial

Such that :

i. No. of trials are fixed

ii. Probability of success is constant (p=0.0005)

iii. Possible outcomes are two (having cancer or not)

Here we can use normal approximation to Binomial

Because N is very large

So  class distribution is considered to be normal using normal approximation to binomial.

To learn more, visit:

brainly.com/question/9325204

#SPJ4

5 0
2 years ago
Graph a line with a slope of -2/5 That contains the point (-3,5)
love history [14]

put one point on (-3,5) and another point on (2,3)

7 0
3 years ago
Evaluate the sum of 9.1 and 368.8.​
NARA [144]

Answer:

377.9

Step-by-step explanation:

368.8 + 9.1 = 377.9

3 0
2 years ago
Read 2 more answers
Please answer me fast plz ​
yulyashka [42]

Answer:

find the classmark of each interval

  • forexample
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  • (150+160)/2

do the same up to (190+200)/2

then

draw a graph by using frequently (number of weeks) on y-axis against classmark on x-axis

7 0
3 years ago
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