A random sample of 10 envelopes is taken from letter box of a post office and their weight in grams are found to be 7.2,7.3,7.1,6.9,6.8, 6.5, 6.9, 6.8, 7.1, 7.2. Does this sample indicates at oc=0.05 level that the average weight of envelopes received at their post office is 7gms?

Q: 24 25

A: The base of the triangle is 24. The hypotenuse of the triangle is 25. The triangle is right angled…

Q: 8.20+2

A:

Q: What is the probability of drawing a face card (Jack, Queen, or King) or a diamond from a standard…

A:

Q: 16 - (9 - 4) ÷ 5 =

A:

Q: 25 25

A: From the given figure:     From the Pythagora's theorem:   Hypotenuse2=Perpendicular2+Base2

Q: 75 17

A: Given triangle is right angle triangle :

Q: 16 27

A: The figure of the right triangle is given by To evaluate : The value of x

Q: 9 b and c

A: b) We check if the denominator is 0 for any value of x.  2x2+5=0 2x2=-5 x2=-5/2 (not possible) So…

Q: 36 14

A:

Q: Speedometer readings for a vehicle (in motion) at 14-second intervals are given in the table. t…

A: we need to find the distance travelled

Q: 13

A:

Q: 6.1 4

A: Given that  The vector

Q: 40 10

A:

Q: tions exist, you o = x %3D

A:

Q: 6   9,171.6

A:

Q: 28 47

A:

Q: 81 (1) 420

A:

Q: 12 16

A: We know that If a perpendicular is drawn from the vertex of right angle triangle of a right triangle…

Q: 38 10

A:

Q: Find the value of each variable.

A: The solution is:

Q: 11 11 4. 64

A: Given: simplify the expression

Q: 12 30 24

A:

Q: 30 40 8.

A:

Q: 24

A: Solution : find length of side

Q: 3. Evaluate

A: The given integral is 1/(x-1)2/3 limit from 0 to 3.

Q: 39. 2

A: according to given figure given function is decreasing in it's domain

Q: 18 16

A: The objective is to find the value of x :  In the  given right triangle , Perpendicular = 16…

Q: 12 16 5n

A: Area of triangle= (1/2) × Base × Height

Q: 53. Faxt3

A: Given that, xa-1=ax+3 We need to solve it for x.

Q: (NINETEEN)

A: The information provided in the are as follows :-Level of significance

Q: 15 10 24 15

A:

Q: 12 15 25 24

A:

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.