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The table below shows the probability distribution of a random variable X. X P(X) --20 0.39 -19 0.02 -18 0.18 0.22 -16 0.1 -15 0.09 What is the mean of the probability distribution? Write your answer as
asked
Dec 3, 2023
Mathematics
college
1
answer
146k
views
________ are another name for the horizontal rows on the periodic table of elements.
answered
Nov 20, 2023
Chemistry
college
2
answers
100k
views
A. (f•g)(x) B. (f•g)(-3) f(x) = x^2+3x-2 g(x)= x-2
asked
Nov 16, 2023
Mathematics
college
1
answer
98.8k
views
Match the term with the definition Emulsion Colloid Homogeneous Heterogeneous a. A mixture in which microscopically insoluble particles are suspended throughout another substance b. A mixture in which
asked
Aug 22, 2023
Chemistry
high-school
1
answer
226k
views
all sides of a square are increasing at a rate of 4 centimeters per second. how fast is the area changing when each side is 10 centimeters?
answered
Jun 25, 2023
Mathematics
high-school
1
answer
227k
views
What acts as both "poison and cure" in Romeo & Juliet?
answered
May 16, 2023
English
college
2
answers
5.1k
views
If k and r are constants, the graph of y = (x - r)^3(x - k)^2 does which of the following?A. 'Bounces off' the x-axis at r and kB. Passes through the x-axis at k and rC. 'Bounces off' the x-axis at k,
asked
Apr 10, 2023
Mathematics
high-school
1
answer
201k
views
Lengths (mm) Frequency 200 - 209 1 210 - 219 16 220 - 229 71 230 239 108 240 - 249 83 250 - 259 18 260 269 3 What is the lower class boundary for the first class? class boundary = Enter an integer or decimal
asked
Mar 21, 2023
Mathematics
high-school
1
answer
25.2k
views
Find the surface area. PLEASE HELP!!!!!
answered
Feb 21, 2023
Mathematics
high-school
1
answer
21.9k
views
Your family is trying to decide where to go on holiday. Each family member wants to go to a different destination . What should you do ?
answered
Dec 19, 2022
Arts
high-school
2
answers
139k
views
How many moles are present when there are 1.00 * 10 to the 26 power
asked
Nov 25, 2022
Chemistry
college
1
answer
190k
views
State one integer that makes the following inequality true. 2x – 5 > 11
answered
Oct 14, 2022
Mathematics
college
2
answers
23.6k
views
Which sentence below punctuates the dialogue correctly? A. "John, why are you always on your phone?" asked Sydney? B. "Sorry. I had to check the weather," John said sarcastically C. "All right" said Sydney
asked
Oct 6, 2022
English
high-school
1
answer
176k
views
The taxi and takeoff time for commercial jets is a random variable x with a mean of 8 minutes and a standard deviation of 2.8 minutes. Assume that the distribution of taxi and takeoff times is approximately
asked
Sep 21, 2022
Mathematics
college
1
answer
227k
views
Are the largest group of living reptiles.
answered
Sep 10, 2022
Biology
middle-school
2
answers
217k
views
For chem help plzzzz
answered
Jul 12, 2022
Chemistry
high-school
2
answers
230k
views
27. Improvements in space technology have greatly helped scientists better understand the stars, planets, and other celestial bodies in our universe. How do technological advances in astronomy benefit
answered
May 27, 2022
Physics
high-school
1
answer
128k
views
Becca and Kimberly are running at a constant speed in a marathon. Becca runs at 4.5 miles per hour. Kimberly’s progress is shown in the table. Part A: Who runs faster? Part B: If Becca and Kimberly are
asked
May 16, 2022
Mathematics
college
1
answer
77.3k
views
What song follow the pop song 4 chord pattern, D | A | Bm | G *
answered
Apr 18, 2022
Arts
high-school
1
answer
146k
views
I need HELP QUICK!!! In what three countries was the Vietnam War fought? Vietnam, Korea, and Japan Vietnam, Thailand, and Singapore Vietnam, Laos, and Cambodia Vietnam, Laos, and Burma
asked
Apr 5, 2022
Geography
high-school
1
answer
177k
views
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