1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aleksandr [31]
3 years ago
10

teacher asked her students write down the number of hours studied rounded to the nearest half hour. she complies the results in

develops the probability distribution below for randomly selected student. what is the mean of the probability distribution

Mathematics
1 answer:
Whitepunk [10]3 years ago
8 0

Answer:

1.5

Step-by-step explanation:

The question is incomplete due to the probability distribution table, investigating you can find it so I will attach it.

Having the table, we need to find the mean of the probability distribution, which is defined as the sum of the product of probability and value of random distribution, that is:

M = Sum (xi) * P (xi)

We replace:

M = 0.5 * 0.07 + 1 * 0.2 + 1.5 * 0.46 + 2 * 0.2 + 2.5 * 0.07

M = 1.5

Therefore, the mean of the given table is 1.5

You might be interested in
Name.<br> Solve using <br> Substitution <br> L<br> y = 3x + 2<br> 6x - 2y = 8
masya89 [10]

Answer:

No solution

Step-by-step explanation:

There is no solution to the system of equations y=3x+2 and 6x-2y=8, meaning that they are parallel to each other on a graph, with no points ever intersecting on each other's lines.

6 0
2 years ago
When dividing 878 by 31, a student finds a quotient of 28 with a remainder of 11. Check the students work, and use the check to
Liula [17]
878/3 is 28 with a remainder of 10! The error is when they subtracted 258-248 wrong
3 0
3 years ago
Read 2 more answers
15 POINTS!!! (16*4^3*8^8)^5 Find the answer and show work how you got it
777dan777 [17]

Answer:

2^170

Step-by-step explanation:

(16 x 4^3 x 8^8)^ 5

- start by converting it all to a common base

(2^4 x 2^3 x 2^24)^5

- calculate the product, by adding all the powers

(2^34)^5

= 2^170

5 0
3 years ago
Read 2 more answers
The table shows the predicted growth of particular bacterium after various numbers of hours. Write an explicit formula for the s
Oksana_A [137]

Answer:

D

-29

Step-by-step explanation:

Problem 1

In the first hour, the number of bacteria is 22

In the second hour,the number of bacteria is 44

It looks like the formula is some multiple of 22

That means you should pick D

Problem 2

n = 12

a = 15

d = - 4

an= 15 + (n - 1)*d

a12 = 15 + 11*(-4)

a12 = 15 - 44

a12 = - 29

6 0
3 years ago
X/y table for #’s 10 &amp; 11?
Nadya [2.5K]
For number 10 the y-intercept is going to be at -1 1/3 not -1. 
4 0
2 years ago
Other questions:
  • A student wants to save $8000 for college in 5 years. How much should be put into an account that pays 5.2% annual interest comp
    14·1 answer
  • Determine the measure of each missing angle
    7·1 answer
  • What is the same value as (-14) - 8?
    8·1 answer
  • The minimum and maximum temperature on a cold day in Lollypop Town can be modeled by the equation below: 2|x − 6| + 14 = 38 What
    13·2 answers
  • An angle measures 10° less than the measure of its supplementary angle. What is the measure of each angle?​
    13·1 answer
  • What is 600000+45 yes I'm back
    13·2 answers
  • Write a/-b in standard form
    8·1 answer
  • Sharon needs 3 pounds of turkey for every 2 people that are attending her dinner party.
    5·1 answer
  • 42 students are going on a field trip. The students are divided into groups of four Students. How many groups of four will there
    14·1 answer
  • If the height of a falling object after a certain amount of time is given by the equation ​, which of the following is​ true?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!