Two students are randomly selected from a class of 20 girls and 5 boys What is the probability that two girls are selected? Round answer to four decimals

Q: Sixty percent of consumers prefer to purchase electronics online. You randomly select 8 consumers.…

A: Let the R.V X denotes the number of consumers prefer to purchase electronics online  and it follows…

Q: Lloyd buys a bag of cookies that contains 7 chocolate chip cookies, 5 peanut butter cookies, 5 sugar…

A:

Q: Three people are selected for a committee from 7 Democrats and 5 Republicans. What is the…

A: Given information: Frequency of Democrats, d = 7 Frequency of Republicans, r = 5 A committee of x =…

Q: A jar contains 4 pennies, 3 nickels and 6 dimes. A child selects 2 coins at random without…

A: 4 pennies 3 nickels 6 dimes ______________ 13 total coins   select 2 coins at random without…

Q: find the probability that the educator is a female or an associate professor

A: We have given that an educators at a college were classified according to gender and academic rank.

Q: Steve has 12 biscuits in a tin. There are 5 digestive and 7 chocolate biscuits. Steve takes two…

A: Given that, Total number of biscuits = 12 5 digestive biscuits and 7 chocolate biscuits We to find…

Q: In a box there are 4 red, 4 blue and 3 white marbles. Two marbles are selected at random and the…

A:

Q: Suruchi has $1.64 worth of change in the bottom of her purse.              If she reaches into her…

A: Given: Total number of coins = 12 Number of nickel = 3

Q: Pete and two co-workers harvested 18 pumpkins from a farm where they worked. If each person…

A: Given Pete and two co-workers harvested 18 pumpkins.Each person harvested at least 5 pumpkins.The…

Q: What is the probability if you randomly select a handful of 4 candy pieces you will pick one of each…

A: Solution: From the given information, there are 5 brown candy pieces, 7 blue candy pieces, 3 red…

Q: Find the probability of getting three of a kind when playing five card poker

A: Given Playing 5 card poker

Q: You are hosting a party with 6 coworkers . Each coworker will be getting a beer as a drink. The…

A: It is given that the number of co-workers or friends is 6. The probability of any co-worker asks for…

Q: A bag contains 3 red and 6 blue balls. You draw one ball and then another without replacement. What…

A: Total number of red balls in the bag is 3. Total number of blue balls in the bag is 6.

Q: Manny buys a bag of cookies that contains 6 chocolate chip cookies, 4 peanut butter cookies, 7 sugar…

A: Bag contains no. of chocolate chip cookies=6no. of peanut butter cookies=4no. of sugar cookies=7no.…

Q: Find the probability of winning a lottery with the following. Select the six winning number from…

A: Find the probability of winning a lottery with the following. Select the six winning number from…

Q: Find the probability for a roll of two dice. Rolling a sum of 8 (the sum is found by adding the 2…

A: In general, there are 36 possible outcomes when rolling two dice.

Q: Julia has eaten 12 doughnuts over the past few months. Of those doughnuts, 2 were maple doughnuts.…

A:

Q: There is a lottery drawing every Wednesday from the school store. You have to choose 5 numbers from…

A:

Q: A bag contains 2 gold marbles, 10 silver marbles, and 26 black marbles. You randomly select one…

A: Given data, No of gold marbles=2 No of silver marbles=10 No of black marbles=26 Total no of…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.