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Suppose x1∼ N(2, 0.5) and x2 ∼ N(8, 14). The correlation between x1 and x2 is −0.3. What is the distribution of x1+ x2? What is the distribution of x1− x2?
answered
Apr 3, 2024
Mathematics
high-school
2
votes
70.9k
views
What is the effect of our environment hazards
answered
Mar 8, 2024
Biology
college
6
votes
3.3k
views
One of the rulers of the Byzantine Empire was named___________. Group of answer choices Justinian Vlladimir Khan Princess Olga
answered
Mar 3, 2024
History
college
2
votes
146k
views
If you fail the drivers test the second time you may retake it A. in another week B. the next day C. in another month D. none of these
answered
Feb 14, 2024
Social Studies
high-school
1
vote
2.2k
views
Let e be the solid ball of radius 5 centered on the origin of ℝ3 and let f = (x z)i − (y − z)j (y − x)k.
answered
Jan 25, 2024
Physics
high-school
4
votes
157k
views
Distance between (-3,-7) and (3,-5)
answered
Jun 17, 2023
Mathematics
college
7
votes
181k
views
Charile can make 125 pizzas in 5 hours how many pizzas can he make in one hour
answered
Jun 16, 2023
Mathematics
college
11
votes
75.8k
views
Peter was thinking of a number. Peter divides by 7, then adds 5 to get an answer of 13. What was the original number?
answered
Aug 26, 2022
Mathematics
high-school
7
votes
74.9k
views
Substance A has twice the specific heat capacity as substance B. If 1000 J of heat are added to 1.0 kg of each substance, compare the change in temperature of each substance.
answered
Jun 20, 2022
Physics
high-school
8
votes
215k
views
5. Li feeds her dog 3 cups of food each day. About how many cups of food does her dog eat in 28 days?
answered
May 9, 2022
Mathematics
high-school
4
votes
167k
views
Which of the following statements is true?
answered
Mar 14, 2022
Mathematics
college
5
votes
164k
views
Help me with this please
answered
Mar 8, 2022
Computers and Technology
college
1
vote
107k
views
What number minus 6 equals 58?
answered
Mar 7, 2022
Chemistry
high-school
10
votes
19.3k
views
An example of a positive feedback loop ________. a. are birds migrating south in response to colder temperatures b. is a thermostat turning on the furnace as the temperature drops c. is melting arctic
answered
Dec 23, 2021
Biology
high-school
7
votes
82.4k
views
Which expression can be used to solve 3/5•|• 7/10
answered
Dec 14, 2021
Mathematics
college
4
votes
139k
views
True or false the Italian renaissance and ideas of the northern renaissance were the same
answered
Nov 27, 2021
History
middle-school
7
votes
103k
views
If ⅔ of a number is 24, then ¼ of the same number is what?
answered
Nov 10, 2021
Geography
middle-school
4
votes
147k
views
Which expression does NOT represent the product of 3 and 7? A. 3⋅7 B. 3(7) C. 37 D. 3×7
answered
Oct 31, 2021
Mathematics
high-school
6
votes
183k
views
A 77-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.2 m/s in 0.87 s. The elevator travels with this constant speed for 5.0 s,
answered
Sep 7, 2021
Physics
high-school
3
votes
66.8k
views
Bernardo graphed the amount of money he earned each week mowing lawns. A line graph titled Lawn Mowing Money has weeks on the x-axis and money on the y-axis. Week 1 was 100 dollars, week 2 was 70 dollars,
answered
Jul 14, 2021
Mathematics
middle-school
4
votes
186k
views
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