Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. assume that when adults with smartphones are rando

Assume that when adults with smartphones are randomly​ selected, 53% use them in meetings or classes....

Free

70.2K

Verified Solution

Question

Statistics

Assume that when adults with smartphones are randomly​ selected,53% use them in meetings or classes. If 13 adult smartphone usersare randomly​ selected, find the probability that fewer than 3 ofthem use their smartphones in meetings or classes.

The probability is ___.

​(Type an integer or decimal rounded to four decimal places as​needed.)

Answer & Explanation Solved by verified expert
4.1 Ratings (646 Votes)

Sample size , n =    13
Probability of an event of interest, p =   0.53

P(fewer than 3) = P(X=0) + P(X=1) + P(X=2)

P ( X =    0   ) = C(   13   ,   0   )*   0.53   ^   0   *   0.470   ^   13   =   0.0001
P ( X =    1   ) = C(   13   ,   1   )*   0.53   ^   1   *   0.470   ^   12   =   0.0008
P ( X =    2   ) = C(   13   ,   2   )*   0.53   ^   2   *   0.470   ^   11   =   0.0054

P(fewer than 3) = 0.0001 + 0.0008 + 0.0054 = 0.0063
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

An online account password for a certain website consists of eight characters, where at least one...

Basic Math
Q

Of the human traits listed below, which are likely to be under the control of a...

Biology
Q

In a neuron the action potential usually commences on a dendrite and then moves though...

Biology
Q

All chemicals that inhibit microbial growth are called antibiotics.TrueFalse

Biology
Q

The rate of doing work by force acting on a particle moving along x axis...

Physics
Q

Solve the linear programming problem using the simplex method.MaximizeP=2x? + 3x? + 4x3X? + X3...

Basic Math
Q

27 34 Use the form of the definition of the integral given in Theorem 4...

Calculus
Q

Find the amplitude and midline Enter your answers in decimal form do not use fractions...

Algebra
Q

Find the perimeter and area of the figure shown to the right Assume right angles...

Algebra
Q

Seeds a The complex conjugate of 9 5 Is 9 5 b 9 51 9...

Algebra
Q

***** Scenario 2: Nonqualified Deferred Compensation Executive receives nonqualified...

Accounting
Q

Draw the payoff of the hedging strategy (i.e., (1) and (2) and it combination). 20...

Finance