Binomial theorem Questions and Answers

A member of the American Kennel Club is researching Irish Wolfhounds and measures ninety of them to find a sample average height of 33 0 Inches with a 90 confidence interval of 32 7 33 3 inches If the researcher finds twenty other ninety dog samples about how many of those samples will have an average outside this interval 01 02 04

Suppose the binomial expansion of (x - y)^n includes the term - 84x^6y^3. The x^5y^4 term in the expansion will be The x^6y^8 term in the expansion will be

Consider the binomial expansion of (4x + 3y)^n. Suppose the expansion includes a x^4y^8 term. Then n = ___ Check ALL of the following which will NOT in the simplified expansion of (4x + 3y)^n. x^8y^4 x^8y^6 x^9y^3 x^6y^8

Use the Binomial Theorem and Pascal's Triangle to find the expanded form of the binomial expression. (2x+3y) A. (2x) +6(2x)³ (3y)+15(2x)*(3y)² +20(2x)³ (3y)³ +15(2x)² (3y)* +6(2x)(3y)³ +(3y) B. (2x)+7(2x)³ (3y)+21(2x)*(3y)² +35(2x)³ (3y)² +21(2x)²(3y)* +7(2x)(3y)³ +(3y)

The time between breakdowns of an alarm system is exponentially distributed with mean 10 days. What is the probability that there is less than 1 breakdown on a given day? .9048 .3679 .0952 .000

Suppose the binomial expansion of (4x + 5y)^n includes the term 1400000x³y⁴. (A) The x³y⁴ term in the expansion will be? (B) The x⁵y⁴ term in the expansion will be?

The polynomial (x + 9)⁷ (x – 5)² (- 3x² + 7x + 2)³ has degree? The leading term will be?

Suppose the binomial expansion of (x - y)n includes the term – 84x6y3 The x5y4 term in the expansion will be ___ The x6y8 term in the expansion will be ___

Suppose the binomial expansion of (x + y)^n includes the term 3003x⁶y⁸. The x⁵y⁹ term in the expansion will be? The x⁴y³ term in the expansion will be?

Suppose the binomial expansion of (2x – 3y)n includes the term –15120x4y3 The x4y3 term in the expansion will be The x5y3 term in the expansion will be

Find the coefficient of the a³y¹¹ term in the expansion of (a + y)¹⁴. In the expansion, (a + y)¹⁴ = a¹⁴ + ... +___________ a³y¹¹ + ... +y¹⁴ (Enter ONLY the coefficient)

Find the indicated terms in the expansion of (4x² + x - 2)(4x² + 5x – 10) (5x² + 4x + 3) The degree 5 term is ___ The degree 1 term is ___

Find the term of the binomial expansion containing y^12. (x^4+y)^21

Which one of the following options is true when considering the expansion of the binomial expression (x + y)5? A. The expansion of (x + y)5 will yield 5 terms. B. The first term of the expansion of (x + y)5 is x5y5. C. The sum of the exponents of each term of the expansion of (x + y)5 is 5. D. The coefficients of the expansion of (x + y)5 are: 5, 10, 10, 5.

Which of the following terms appear in the expansion of (x+y)^10? The letter a in each term represents a real constant. A. ax^4y^6 B. ax^5 C. ax^6y^4 D. ax³y^7

A cat has a litter of 7 kittens. Find the probability that exactly 4 of the kittens are female. Assume that male and female births are equally likely. Estimate the probability to five decimal places if necessary. A) 0.00781 B) 0.54688 C) 0.27344 D) 2.1875