PLEASE HELP The probability distribution for a
random variable x is given in the table.
Answers
1
Step-by-step explanation:
p(x≤20)=p(x=-10) +p(x=-5)+p(X=0) +p(x=5) +p(x=10)+ p(X=15)+p(X=20)
This, p(X≤20)=0.20+0.15+0.05+0.1+0.25+0.1+0.15
=1
Related Questions
29 + 15x = -x - 3. Simplified
Find the average of 72,95,100,85,and 88
The table of values shows the number of touchdown passes that a quarterback threw in each of his first five football games of the season.Game vs. Touchdown PassesGameTouchdown passes1321334253Which would be a point on the scatterplot that represents touchdown passes based on these games played?(1, 2)(2, 4)(3, 1)(5, 3)
According to the National Institute of Allergy and Infectious Diseases, 6% of American adults have a food allergy. A large company plans a lunch reception for its 500 employees. Assume that employees are independent. Let the random variable X be the number of company employees who have a food allergy. (a) What are the assumptions/requirements of a Binomial distribution? Does this situation meet all these requirements? (b) What are the expected value and standard deviation of X (i.e., of the population)? (c) What is the probability that none of the 500 employees has a food allergy?
Answers
Answer:
25.56
Step-by-step explanation:
30 divided by 4 is 6 so 30- 6=24
6.5% of 24=1.56 sooooo 24+1.56=25.56
Answer:
$6.39
Step-by-step explanation
well, 20% of $30 is $6, so then you just have to add on the tax, which is 39 cents, coming to $6.39
Question 3 options:
A)
29.32 and 3.97
B)
32.27 and 4.57
C)
27.48 and 5.20
D)
No Solution
Answers
Answer:
The closest choice is ...
C) 27.48 and 5.20
Step-by-step explanation:
Using the equation ...
y = ax² + bx + c
You can substitute the first three points to get linear equations in a, b, and c.
10 = a(-3)² +b(-3) +c = 9a -3b +c
4 = a(0)² + b(0) +c = c
-1 = a(3)² + b(3) +c = 9a +3b +c
The second equation tells us c=4. Subtracting the first equation from the last, we get ...
(9a +3b +c) -(9a -3b +c) = (-1) -(10)
6b = -11
b = -11/6
Then we can find "a" from the first equation:
10 = 9a -3(-11/6) +4
1/2 = 9a . . . . subtract 19/2
1/18 = a . . . . . divide by 9
The model is ...
y = (1/18)x² -(11/6)x +4 . . . . . . . . [call this "model A"]
y = (x² -33x +72)/18
Solving this for y = -4, we have ...
-4 = (x² -33x +72)/18
x² -33x +144 = 0 . . . . . . multiply by 18, add 72
(x -16.5)² -128.25 = 0 . . . . put in vertex form
x = 16.5 ±√128.25 ≈ {5.17525, 27.8248}
___
The closest values to these among the choices offered are those of choice C. It appears that the coefficients of model A were rounded to 3 decimal places (or so) before the predicted x-values were computed.
B- the foci are further from the center than the vertices
C- the center is located at the midpoint of the two foci
D- the center is located at the midpoint of the two vertices
Answers
A and D because they are both related unlike C and D.
Answers
In a triangle, the three interior angles always add to 180° ⇒
m∠2 + m∠3 + m∠5 = 180
180-3x + 2x+20 + 30 = 180
230 - x = 180
x = 230 - 180
x = 50
MATH i will reward brainliest! :)
Answers
Answers
Answer:
Someone who sells 20 boxes of cards earn 3 badges.
Step-by-step explanation:
Answer:
b(20) = 3 means that for 20 boxes of cards sold, 3 badges were earned.
Step-by-step explanation:
The number of badges earned based on the number of boxes of cards sold means that badges earned are a function of the number of boxes of cards sold.
b(20) means the number of badges earned for selling 20 boxes of cards.
b(20) = 3 means that for 20 boxes of cards sold, 3 badges were earned.