Question: 9. A student takes a 5 - question, multiple-choice exam with four choices for each question and guesses on each question. n = p= q

9. A student takes a 5 - question, multiple-choice exam with four choices for each question and guesses on each question. n = p= q = a) Find the probability of guessing exactly 2 out of 5 correctly. P (X = 2) = b) Find the probability of guessing at most 2 out of 5 correctly. P (at most 2) =

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

X 15 25 10 12 P(X) 0.3 0.4 0.2 0.1 Mean = Variance = Standard deviation = Problem # 9: A students takes a 5 - question, multiple-choice exam with four choices for each question and guesses on each...

QUESTION 3 A student takes a 10 questions multiple-choice exam, with four choices per question. Suppose the student makes an "educated" guess on all the 10 questions. Let X be the event of getting...

STAT 5.1 Quiz (I posted all the questions that I need help/answers too below. The subject is statistics. I appreciate if you can answer a few, all, or as many as you can. Thank you!) Use the counting...

1. A box has 9 balls consisting of 5 blue balls and 4 green balls, from which 3 balls must be randomly drawn simultaneously. It is of interest to determine the probability that a certain number of...

Suppose a student takes a 20 question multiple-choice test and guesses at every answer. If there are exactly four choices on each question, what is the probability the student passes the test?...

Question 11 (1 point) () Listen A student takes a five question multiple-choice quiz. Each question has four possible responses. The student guesses at random for each question. Calculate and graph...

A student takes 13 questions multiple choice exam with 4 choices for each question and guesses on each question. Find the probability of guessing exactly 5 out of 13 correctly.

Statistics Question 18 If the distribution of weight of newborn babies in Maryland is normally distributed with a mean of 3.31 kilograms and a standard deviation of 0.52 kilograms, find the weights...

A calculus student takes a 20 question multiple choice test with five answer choices for each question. Find the probability of getting atleast 70 percent of the question correct ? Suppose a family...

Write 3/16 as a decimal. O a.3.166 Ob..2 O c. 18.75 O d.5.333 e. None of the above

Radhames company installs a computer was manufactured machine and his factory at the beginning of the year at the cause of 48,400 the machine usual life as me to 10 years are 394,000 units about it...

A 1 . 2 0 kg mass oscillates according to the equation x = 0 . 7 0 0 cos 8 . 2 0 t , where x is in meters and t is in seconds. Determine the amplitude. Determine the frequency

Salim Company has several of items they store in inventory. The table below shows the annual demand, and the item cost. What is the % of (SAR) Value for Item G55 ? NOTE : Insert the value in the box...

Self-confidence

The number of people commenting on the statement

3. Choose a social incident in your local area. (a) List three points that you believe are the cause of the social incident and develop a model that shows a linear relationship. (b) What is the...