binomial cdf and pdf

If you were to flip a coin 20 times, what is the probability you would get at least 13 heads?

• .9423
• .1316
• .0577
• .0739

Tags

CCSS.HSS.CP.B.9

If you were to flip a coin 20 times, what is the probability you would get at most 13 heads?

• .9423
• .1316
• .0577
• .0739

Tags

CCSS.HSS.CP.B.9

If you were to flip a coin 20 times, what is the probability you would get exactly 10 heads?

• .5
• .1762
• .5881
• .4119

Tags

CCSS.HSS.CP.B.9

If you were to flip a coin 20 times, what is the probability you would get either 10 or 11 heads?

• .8398
• .1602
• .3364
• .6636

Tags

CCSS.HSS.CP.B.7

CCSS.HSS.CP.B.9

CCSS.HSS.MD.A.3

Suppose 39% of Americans will vote for Donald Trump on election day.  If a random sample of 8 voters are selected, what is the probability that more than 5 will vote for Trump?

• .9635
• .0365
• .9561
• .0439

In Vietnam, the probability of rain is 70%.  Find the probability of it raining at most 2 days in a week.

• .9712
• 0.0250
• .0287
• .2988

Tags

TEKS.MATH.A.5C

In Vietnam, the probability of rain is 70%.  Find the probability of it raining at most 5 days in a week.

• .9712
• .6705
• .3294
• .5520

Tags

TEKS.MATH.A.5C

If a standard die is rolled 8 times, find the probability of rolling a number 4 at least twice.

• .3953
• .9548
• .8554
• .2245

Tags

CCSS.HSS.CP.B.9

An algebra 2 test has 6 multiple choice questions with four choices with one correct answer each. If we just randomly guess on each of the 6 questions, what is the probability that you get exactly 3 questions correct?

• 0.962

• 0.132

• 0.831

• 0.250

Tags

CCSS.HSS.CP.B.9

The American Red Cross says that about 11% of the U.S. population has Type B blood. A blood drive is being held at your school. What is the probability that at least 2 of the first 10 blood donors has Type B blood? 

• 0.088
• 0.697
• 0.214
• 0.303 

Tags

CCSS.HSS.CP.B.9

CCSS.HSS.MD.A.3