The heights of 18 year-old men are approximately normally distributed, with a mean 68 inches and a standard deviation of 3 inches. If a random sample of nine 18-year old men selected, what is the probability that the mean height is between 67 and 69 inches? The mean is and the standard deviation is The probability is

Q: 9. 87 12 5 -

A:

Q: 1+1+1+..+1e 572 2.

A:

Q: A. 5. 13 2.

A: sets are given with values,we have to find nAC∩BC

Q: 3rloy- r5r9 3. 6.

A:

Q: 2.45-3.1t=21.05

A: Given,          2.45 - 3.1t = 21.05

Q: B round to four decimals c round to one decimal  d round to nearest whol

A: Given Data The initial amount is mo=15 g. The half-life of cesium-137 is t=30 years.   (a) In the…

Q: 3 5/6 as a mixed number

A: Solution

Q: -5.4 + 9.5

A:

Q: 3. 8* = 12,143

A:

Q: -0.8 0 1.2

A:

Q: O5.0 0.6.28 02.58 O 5.27

A: The tests based on large samples are called large sample tests. Here the test is based on the normal…

Q: %3D 10 3

A:

Q: 12. 109 105 70 B.

A:

Q: 0.3(7 + 2x) + 1.3x = 3.5

A:

Q: Johnny would like to cover the yard space with artificial turf (plastic grass-like rug). How many…

A:

Q: n=1 ni

A: p-test: The series ∑n=1∞ 1np converges if p>1.

Q: T-1.3 5.8 +2.6 1.6 + 3.7 3- 4.3

A:

Q: 69.니7-70 28.26 30

A:

Q: - 7 p 6 42 II

A: We have to find valu P

Q: 1 34 268 ".95 A=

A: We find the determinant of given matrix A by determinant expansion.

Q: 21.6. S dz 3.

A:

Q: 9.3

A: Our Aim is to solve the following expression given below:- 4.5f-9.3+3.4f=61.6 -(i)

Q: find the devivetive %3D x+6

A: Given that      f(x) = [x/√(x+6)]3 Here we have to find the derivative of f(x) .

Q: %

A:

Q: 1. Find m 1. 89.2 48.5

A: Consider the given figure

Q: many decimals in 0.90

A:

Q: 5* dx

A: To solve this problem we have to use substitution method firstly and then exponential rule of…

Q: 4. 100° 32

A:

Q: 0.4-0.021 V0.02)(1-002) 250

A:

Q: 00 e 2.

A:

Q: 75%1

A:

Q: Lancpls 5000 hale 10,5 % 5 the

A: Solution is given below:

Q: What is the approximate value of tan бл 5

A: let  A=tan(6π5)we know tan(π+x)=tanx

Q: 7. Simplify. 4 Va

A: See the attachment

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.