We randomly survey 100 Chinese children living in a rural area. 1. What is the chance that the average of unsupervised hour for these 100 children is less than 2.9? 2. What is the chance that the sample average of unsupervised hour for these 100 children is between 2.8 and 3.2 hours?

Q: 6.7 Find the unique number which is equal to its half plus 1.

A:

Q: 5.1 #7

A: Given that                  A=60-1054-403-3502-425, λ=5

Q: 1o.e 4.60

A: trigonometry rule

Q: Question 18.30

A: The given data

Q: Question 15.22

A: We have to find value of test statistics.

Q: 10.0

A:

Q: Find .6 7 LT." 3 4 xy dydx.

A: Given that the integral ∫36∫47xy dydx. Find the value of given integral.

Q: Given a sample with a mean of 94 and a standard deviation of 17, find x such that Pr(X > x) = 0.282.…

A: Given a sample with a mean of 94 and a standard deviation of 17, find x such that Pr(X > x) =…

Q: Given the information below, estimate the total distance travelled during these 6 seconds using a…

A: We need to perform left endpoint approximation.

Q: d) | 4f(x)| dæ =

A:

Q: 4.5-10

A: Introduction: Suppose X and Y follow the bivariate normal distribution with mean and variance of X…

Q: 1.6+0.4(x+6)+3.2

A: To simplify the expression means writing it in the simplest form.

Q: 6.1 10

A:

Q: 29 14

A: It's trigonometric question so I'm providing hand written solution for better understanding.

Q: 2.3 1/p; (1-P)/p².

A: X~geom(p)

Q: 8. 2 k=1 3k

A:

Q: 5. 20 52

A:

Q: 4. 15 33,

A:

Q: 1/3+4/5=

A:

Q: 3 33. 3 .2 3.

A:

Q: 14 19

A: To find :- x  Given :- Base = 14 , Hypotenuse = x ,               and θ= 49°   By using…