GradePack

    • Home
    • Blog
Skip to content
bg
bg
bg
bg

GradePack

The probability that events A or B will occur, P(A or B), is…

The probability that events A or B will occur, P(A or B), is given by P(A or B) = P(A) + P(B) P(A and B). If events A and B are mutually exclusive, then the rule can be simplified to ___________. It is because __________

Read Details

No prior data given. How do you find n?

No prior data given. How do you find n?

Read Details

Continuity correction represents _______ whole number x by t…

Continuity correction represents _______ whole number x by the interval ______

Read Details

If 3 of the 50 subjects are randomly selected without replac…

If 3 of the 50 subjects are randomly selected without replacement, find the probability that the first person tested positive and the second person tested negative and the third tested positive. Use the chart below:  

Read Details

Topford supplies X-Data DVDs in lots of 60, and they have a…

Topford supplies X-Data DVDs in lots of 60, and they have a reported defect rate of 0.8% so the probability of a disk being defective is .008. What is the probability of getting at least one defective disk in a lot of 60? P (At least 1 defective disk in 60) =

Read Details

Pew Research revealed 92% of adults know twitter. 5 adults w…

Pew Research revealed 92% of adults know twitter. 5 adults were randomly chosen. What is the probability the first three consecutive adults know twitter.

Read Details

Pew Research revealed 92% of adults know twitter. 5 adults w…

Pew Research revealed 92% of adults know twitter. 5 adults were randomly chosen. What is the probability Exactly 3 adults know twitter. Note: 5C3 means 5 combination 3 where order is not important

Read Details

When three children are born: Assuming that boys and girls a…

When three children are born: Assuming that boys and girls are equally likely, find the probability of getting three children of all the same gender P (Three children having the same gender) =  

Read Details

Google hires you to find how many people buy tutoring servic…

Google hires you to find how many people buy tutoring services online. How many adults need to be surveyed for 99% CL that sample is no more than 4% n= ((Z_(a/2)) ^2 (p)(q)/ (E)^2 or n= ((Z_(a/2)) ^2 (.25)/ (E)^2 Census reveals 75% use tutoring service online p= q= Z_(a/2) =

Read Details

Pew Research revealed 92% of adults know twitter. 5 adults w…

Pew Research revealed 92% of adults know twitter. 5 adults were randomly chosen. What is the number of ways 3 adults know twitter.

Read Details

Posts pagination

Newer posts 1 … 41,178 41,179 41,180 41,181 41,182 … 81,591 Older posts

GradePack

  • Privacy Policy
  • Terms of Service
Top