Search & Filtering
For each population, find the mean of the sampling distribution of the sample mean with an indicating sample size,n.
A.7,10,19,20 ; n=2
B.46,51,55,59,61 ; n=3
C.24,26,29,32,35 ; n=4
the following are the height of 8 students in centimeters suppose sampe of size 3 are taken from this population of 8 students.
student height
a 120
b 130
c 110
d 125
e 152
f 170
g 137
h 155
a) how many sample are possible? list them and cmpute the mean of each example?
b) construct the sampling distribution of the sample means
c) construct the histogram of the sampling distribution of the sample means
The number of samples of size r that can be drawn from a population of size n is given by a representation?
A new car is purchased for 15300 dollars. The value of the car depreciates at 14.25% per year. What will the value of the car be, to the nearest cent, after 6 years?
Understanding the Z-score
Solve the following problem.
1. X = 50, s = 5, X(mean) = 40
2. X = 40, o = 8, u(mean) = 52
3. X = 36, s = 6, X(mean) = 28
The First Few Terms Of A Sequence (Xn) Are Given Below. Assuming That The "Natural Pattern"
Probability of x=10?
Probability of x=10?
Let P (x) = 2x^4+15x^3+31x^2+20x+4
(a) Determine whether (x −1) is a factor of P (x). (2)
(b) Find all the possible rational zeros of P (x) by using the Rational Zeros Theorem. (2)
(c) Solve P (x) = 0. (4)
Use Descartes’ Rule of Signs to determine the possible number of positive, negative and
imaginary zeros of P (x).
(i) P (x) = 2x^3+x^2-3x+6.
