. 14 chess players participated in the chess tournament, each of them played one game with each. How many games were played in total? (Answer: 91.)

Q: Paul has 16 colored pencils. 3/8 of these pencils are blue. How many blue pencils does paul have?…

A: Paul has 16 colored pencils. 3/8 of these pencils are blue. We have to find how many blue pencils…

Q: In a survey of 3130 adults aged 57 through 85 years, it was found that 89.1% of them used at least…

A: Solution: a. From the given information, n=3130 and p=0.891.

Q: You have 7 coins, one of which is either lighter or heavier than the other. What is the minimum…

A: This question is about unusual coin i.e. the heavier or the lighter coin among the seven coin.  It…

Q: How many​ 10-digit phone numbers are​ possible?

A: To find the possible no. of 10-digit phone numbers.

Q: 7 At the basketball game last night, the home team was losing by 48 points at halftime, so fans…

A: Introduction: It is required to find the number of people left by the end of the game.

Q: 155 students were surveyed about their social media usage. 72 students said they post on Instagram…

A:

Q: 0 22 C6 + 22 C₂

A:

Q: A workshop venue has 35 participants.Each participant shakes hands with each and every other…

A: There are total 35 participants present at the venue. So the 1st participant will shake hands with…

Q: A survey of 100 people found that 75 carried a cell phone, 12 carried a tablet computer, and 8…

A: Use union and intersection forumula for sets to solve.

Q: 44) 2,238

A:

Q: Evaluate dpois(10,3.95)

A: The dpois(x,lambda) is R-function. This evaluates the probability mass function of poisson…

Q: 73% of the community did not agree with the proposal. The community has 1750 members. How many do…

A:

Q: In a survey of 111 pet owners, 16 said they own a dog, and 54 said they own a cat. 8 said they own…

A: The total number of pet owner is n=111. Let D denotes the set that contains dog owners and C denotes…

Q: What is the average of 47, 38, 56, and 43? O 47 O 184 O 46 O 44

A: Given Data: Given Numbers: 47, 38, 56, 43 There are four numbers given. So, n=4 The average of the…

Q: 3.1 L33 Day T 1) A city bus made 252 stops a day. How many stops did the bus make in 37 days?

A:

Q: In a survey of 114 pet owners, 70 said they own a dog, and 15 said they own a cat. 11 said they own…

A: Given Information: In a survey of 114 pet owners. 70 said they own a dog 15 said they own a cat 11…

Q: Do college undergraduate students differ from the general public with regard to their favorite…

A: H0: There is no significance difference between the college undergraduate students and the general…

Q: (14-25)/51 %23

A: Recall: A straight line has an angle of 180°.

Q: In a recent survey, 52 said they had a dog, 64 said they had a cat and 25 both pets. How many…

A:

Q: There are 80 coins in a piggy bank of which 75% are quarters. What is the least possible amount of…

A:

Q: The All-County Goat Show will award the blue ribbon for 1st place, red ribbon for 2nd place, and…

A: Using permutations and combination

Q: Only 43% of registered voters voted in the last election. Will voter participation be even lower for…

A: We have find hypothesis..

Q: A baseball pitcher threw 3678  pitches during part of a recent season. Of these, 1681 were thrown…

A: From the given information,In a baseball,Total number of pitches (N) =3678Number of no strikes(X) =…

Q: 10. An experiment was conducted to see if listening to music while learning increased retention of…

A: Hypothesis testing

Q: Miami had a total population of 300,000 in 2017 and during that year 5,000 adults were living with…

A: The incidence rate is the rate of new events in a specific period. Mathematically it is the ratio of…

Q: 20% of 60 = __________

A: x % of y = x.y/100

Q: In one game, the Rockies girls' soccer team scored 4 goals and had 1 goal scored against it. How…

A:

Q: In how many ways could 5 chocolate bars be choosen from a display of 10 chocolate bars? a. 50 b.…

A: Given No.of chocolate bars in display(n)=10No.of chocolate bars to be choosen(r)=5

Q: Out of 300 people who entered a bicycle race, 90% of them carried a water bottle with them during…

A:

Q: Getting at least one head when tossing three fair coins.

A: The probability of getting a head is 1/2.  The probability of getting a tail is 1/2.

Q: A biologist is sampling randomly from a population of 1000 birds of which 22% are cassowaries, 18%…

A: GivenTotal population of birds = 1000Percentage of cassowaries = 22%Percentage of hornbills =…

Q: In an annual sports meet, 9 students compete in 2 events (the 100 meter and 1000 meter race). How…

A: since we are given two events - 100 meter race and 1000 meter race. We will consider the events…

Q: (358)16= . Select one: a. (850)10 b. (856)10 c. (658)10

A: In the question it is asked to convert 358 hexadecimal to decimal equivalent.