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Fed [463]
3 years ago
8

About two way frequencies

Mathematics
1 answer:
dybincka [34]3 years ago
6 0

Answer:

a.

Step-by-step explanation:

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Find the sum of the first 40 even positive integers.
Pachacha [2.7K]

Answer:

1640

Step-by-step explanation:

Even, positive integers

2+4+6+8+10+12+14+16+18+20+22+24+26+28+30+32+34+36+38+40+42+44+46+48+50+52+54+56+58+60+62+64+66+68+70+72+74+76+78+80 = 1640

6 0
2 years ago
Given f (x) = 1/3 (x +6) what is f (-6)?<br><br>help me pretty please!!​
Blizzard [7]

Answer:

  0

Step-by-step explanation:

Put -6 where x is and do the arithmetic.

  f(-6) = 1/3 (-6 +6) = 1/3 (0)

  f(-6) = 0

3 0
3 years ago
Read 2 more answers
A real estate agent has 12 properties that she shows. She feels that there is a 30% chance of selling any one property during a
Ronch [10]

Answer:

0.2528 = 25.28% probability of selling no more than 2 properties in one week.

Step-by-step explanation:

For each property, there are only two possible outcomes. Either they are sold, or they are not. The chance of selling any one property is independent of selling another property, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

A real estate agent has 12 properties that she shows.

This means that n = 12

She feels that there is a 30% chance of selling any one property during a week.

This means that p = 0.3

Compute the probability of selling no more than 2 properties in one week.

2 or less sold, which is:

P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{12,0}.(0.3)^{0}.(0.7)^{12} = 0.0138

P(X = 1) = C_{12,1}.(0.3)^{1}.(0.7)^{11} = 0.0712

P(X = 2) = C_{12,2}.(0.3)^{2}.(0.7)^{10} = 0.1678

Then

P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0138 + 0.0712 + 0.1678 = 0.2528

0.2528 = 25.28% probability of selling no more than 2 properties in one week.

8 0
3 years ago
HELP PLEASE ! <br>12) 12 13 + 2) + 9= ?​
valkas [14]

Answer:

11.9230769231

Step-by-step explanation:

Don't ask I am a smarty

6 0
3 years ago
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Describe how to use Scientific Notation to write a very large number. Give an example, written in both Standard Form and Scienti
mel-nik [20]
A short way of writing really large numbers or really small numbers
Ex:
360,000,000 is written in scientific nation as.. 3.6 x 10^8
5 0
3 years ago
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