- 13.4 A.1: What is the probability of failure?
- 13.4 A.2: Write out the outcomes that have exactlytwo successes.
- 13.4 A.3: Complete the probability distribution below.
- 13.4 A.4: Find the expected value of the number of seedsthat will sprout, and...
- 13.4 A.5: Write a probability distribution for the number ofbulls-eyes in 4 t...
- 13.4 A.6: What is the probability of hitting at least 3 bulls-eyes in 4 tries?
- 13.4 A.7: What is the probability of hitting less than 2 bulls-eyes in 4 tries?
- 13.4 A.8: What is the expected value of the number ofbulls-eyes in 4 tries?
- 13.4 A.9: 50 questions correct?
- 13.4 A.10: 70 questions correct?
- 13.4 A.11: 30 questions correct?
- 13.4 A.12: 90 questions correct?
- 13.4 A.13: Find the expected value and standard deviation ofthe number of corr...
- 13.4 A.14: Find the expected value of the probabilitydistribution. What is the...
- 13.4 A.15: What is the probability of successes? Whatis the probability of suc...
- 13.4 A.16: Find the standard deviation of the probabilitydistribution. What is...
Solutions for Chapter 13.4 A: Excursion: Binomial Experiments
Full solutions for Precalculus | 1st Edition
Addition property of inequality
If u < v , then u + w < v + w
A function that is continuous on its entire domain
Difference of two vectors
<u1, u2> - <v1, v2> = <u1 - v1, u2 - v2> or <u1, u2, u3> - <v1, v2, v3> = <u1 - v1, u2 - v2, u3 - v3>
a(b + c) = ab + ac and related properties
The set of all points in the plane such that the sum of the distances from a pair of fixed points (the foci) is a constant
A function whose graph is symmetric about the y-axis for all x in the domain of ƒ.
Invertible linear system
A system of n linear equations in n variables whose coefficient matrix has a nonzero determinant.
Limit at infinity
limx: qƒ1x2 = L means that ƒ1x2 gets arbitrarily close to L as x gets arbitrarily large; lim x:- q ƒ1x2 means that gets arbitrarily close to L as gets arbitrarily large
A process for proving that a statement is true for all natural numbers n by showing that it is true for n = 1 (the anchor) and that, if it is true for n = k, then it must be true for n = k + 1 (the inductive step)
See Numerical derivative of ƒ at x = a.
A function in which each element of the range corresponds to exactly one element in the domain
An annuity in which deposits are made at the same time interest is posted.
In an experimental study, an inactive treatment that is equivalent to the active treatment in every respect except for the factor about which an inference is to be made. Subjects in a blind experiment do not know if they have been given the active treatment or the placebo.
Polynomial in x
An expression that can be written in the form an x n + an-1x n-1 + Á + a1x + a0, where n is a nonnegative integer, the coefficients are real numbers, and an ? 0. The degree of the polynomial is n, the leading coefficient is an, the leading term is anxn, and the constant term is a0. (The number 0 is the zero polynomial)
Reflection across the x-axis
x, y and (x,-y) are reflections of each other across the x-axis.
Terms of a sequence
The range elements of a sequence.
Upper bound test for real zeros
A test for finding an upper bound for the real zeros of a polynomial.
The points x, 0, z in Cartesian space.