Mathematics, 09.12.2021 15:10 arturomarquezjox3wxn
Monthly rates of return on the shares of a particular common stock are independent of one another and normally distributed with a standard deviation of 1.8. A sample of 15 months is taken. a) Find the probability that the sample standard deviation is less than 2.6. b) Find the probability that the sample standard deviation is more than 1.2.
Answers: 2
Mathematics, 21.06.2019 22:40
The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?
Answers: 1
Mathematics, 22.06.2019 01:10
"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?
Answers: 2
Mathematics, 22.06.2019 03:00
Which rotation about its center will carry a regular hexagon onto itself
Answers: 3
Monthly rates of return on the shares of a particular common stock are independent of one another an...
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