A store gathers some demographic information from their customers. The following chart summarizes the age-related information they collected: Age < 20 Number of Customers 70 20-30 95 30-40 67 40-50 65 50-60 76 2 60 96 One customer is chosen at random for a prize giveaway. What is the probability that the customer is at least 30 but no older than 50? What is the probability that the customer is either older than 50 or younger than 30? What is the probability that the customer is at least 50?

Q: Conv or dive?

A:

Q: Evaluate

A: Explanation of the answer is as follows

Q: 5.

A:

Q: Which graph correctly solves the equation below? -x²+1=x²-4

A: topic - quadratic equations

Q: Solve for x

A:

Q: Evaluate 2 . ( 3 - 5 ) + 8 . 2 - 1

A:

Q: 10+7=?

A:

Q: arg er side is doubled.the new hyp

A: the largest side of a right angle triangle is hypotenuse.  It is doubled .

Q: I need help with 13

A: By Mean value theorem, if a function f is differentiable on a, b, then there exist c∈a, b such that…

Q: Queslion lo

A:

Q: s): olicities: Behavior at x-axis: (through, bounce, flatten) 2. Divide. 4x-10x+5x-7x+1 -x+2

A:

Q: +6/-2 03 -3 O 12 O 4

A: Topic-simplification

Q: answer is wrong

A: Here process is correct only reason answer is incorrect is , in the question they asked for exact…

Q: Rang lertex = (-7;3) qu'od

A: The quadratic function has vertex (-2,3) and a point on graph 1, 12

Q: Find ay Sin(x+y)=Cos X t cos y

A:

Q: Given the graph of the following equation, what is the solution? √x+27= x-3 18 6

A:

Q: ex- 12

A: Given: y=ex-12 we know that am-n=aman

Q: A 25 24

A:

Q: 6.2 please

A: Note: Since we only answer up to 3 sub-parts,we'll answer the first 3.Please resubmit the question…

Q: Evaluate   1 - ( 4 . 3 - 2 + 2 )

A: We have to evaluate: 1 - ( 4 . 3 - 2 + 2 )

Q: Answer unclear

A:

Q: find the number of women

A: Given: z = 1.67 It is given that, Person J’s finishing time is 1.67 standard deviation faster than…

Q: CAN YOU DO A HANDWRITTEN ANSWER

A:

Q: 7 25 24 A B

A: Given: A right triangle with C as 90o. AB = 25 BC =7 AC = 24     To determine: angle α

Q: Simplify. - V4 = 0

A:

Q: asked for 9 and 10..

A: 9 is solved in previous solution, so I am giving solution for 10 :  Given :  60% from south  * 60%…

Q: ス 1+ es

A: We will find the solution We will find C.F and P.I  Then the solution Y = C.F + P.I

Q: with

A:

Q: III. Find the determinants of the following matrices using Laplace Expansion and Triangular matrices…

A: Given matrix is C = -2    7  0   6-2  1-1  3   2   2  3   4  0   5   3  2   5-4-2   2  0   3-1   1…

Permutations and Combinations

If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.

Counting Theory

The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.