According to flightstats.com, American Airlines flights from Dallas to Chicago are on time 80% of the time. Suppose 25 flights are randomly selected, and the number of on-time flights is recorded. (a) Explain why this is a binomial experiment. (b) Determine the values of n and p. (c) Find and interpret the probability that exactly 15 flights are on time,

Q: B (d)

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Q: Use the union rule to answer. If n(A) = 6, n(B) = 11 and n(An B) = 5, what is n(A U B)? n(A U B) =

A:

Q: The student council at a college is made up of five freshmen, six sophomores, seven juniors, and…

A:

Q: Let p="It rained last night", © F"The sprinklers came on last night," r="The lawn was wet this…

A: Given: p= "It rained last night" q="The sprinklers came on last night" r="The lawn was wet this…

Q: An BnC (A-B)U(A-C)U(3 Match each of the options above to the items below. S Di An (BUC) 4

A:

Q: Which of the following expressions is equivalent to 2i? Select all that apply. a (2i) (2)

A: Given: x23 Now check:   a)  x32=x132=x13×2=x23 b) x3=x123=x12×3=x32 c) x2x3=x2-3=x-1 d)…

Q: EVALUATE FOLLOWING TERMS    (A) 8P5  (B) 12P8

A: A) Consider, P58=8!(8-5)!    =8!3!    =8*7*6*5*4*3!3!   =6720 B) P812=12!(12-8)!    =12!4!…

Q: What is the number of different messages that can be represented by three a's and two b's?

A:

Q: Evaluate: t - 1 2 (a) det 3 t - 2

A: Given: Matrix t-123t-2 To determine: Determinant of the given matrix.

Q: Write each of the following expressions as a" , where aE R, nE Z: 9°.3. 27

A:

Q: Identify the like terms in the following expression: ab- ba + 2a + 6ba? O ab, 2a, and 6ba? O There…

A: Like terms in the expression

Q: Which one of these expressions is not equivalent to the other two? Select the odd one out. A (В B a.…

A:

Q: In the given diagram, each letter represents a different number (from 1 to 9), such that each of A+…

A: Given,

Q: a Let c d l=- 4, then – 4, then ba = ? d c -4 12 4

A:

Q: Which of the following have meaning (or are meaningful)? c(a - 5) |2|+12|

A:

Q: Which expression is meaningless? a. axbxc d. (a - b).c b. (axb).c e. a. (bx c) C. (a × b).c

A: Solve the following

Q: Arianna runs up 4 flights of stairs and then runs down 4 flights of state does the situation…

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Q: Use the union rule to answer the question. If n(A n B) = 8, n(A U B) = 34 and n(A) = 32, what is…

A: We know,      n(A U B) = n(A) + n(B) - n(A ∩ B)      => n(B) = n(A U B) + n(A ∩ B) - n(A)

Q: The table shows the movement of a stock for 30 randomly selected trading days. "Up" means the stock…

A:

Q: Decide whether each statement is true or false. See the second Concept Check in this section. The…

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Q: at 9. Select the expression that simplifies to Va-36ªc Va?b-³cA Va?bªc=2 Va-363c Va'b-2 O Vab

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Q: True or false? {4} C {{3}, {4,4}, {{4}}}. True False

A:

Q: iven the data 6,10,8,5,11,6,7,12,11,11,9,6  write the expression you would use to find standar devia

A: the data 6,10,8,5,11,6,7,12,11,11,9,6Sample size n=12the standard deviation is gievn by

Q: Evaluate:

A: Evaluate                                             -4200231031021303 Let us evaluate the…

Q: The tour described in problem 1 traced out a quadrilateral. Find the number of square miles that…

A: Given, Coordinates of point A = (0, 0) Coordinates of point B = (400, 300) Coordinates of point C =…

Q: For Exercise, simplify. 3 a(a – 3)

A: To simplify the expression some steps should be taken such as:  1) Carefully see the common factors…

Q: Q7Which option is equivalent to the expression below: a|b & c|~d   and ( or (a ,b , c , not(d)…

A: Definition: The symbol for and is: & or && The symbol for or is: | or || The symbol for…

Q: Match expressions to the boxes

A: According to the question, r denotes the rate or speed of Hoppertunity. We know that Dortmund runs…

Q: 9. 12 16

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Q: ate for: x = -2, y = 4, and z = 16 * 2+y -x

A:

Q: what expression would be equivalent to?

A: If you have any problem let me know here in comment box for this thankyou.

Q: e Simpify the expression Qら3;35 メ

A: We use algebraic operations to simplify this  also using identity  a2-b2=(a-b)(a+b)

Q: Evaluate the expression C(11,3)C(11,3), equivalently 11C311C3.

A:

Q: Evaluate the expression if a = 8, b = 4, and c = 16. (9)² -

A: Given, a=8, b=4 and c=16Let M=

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.