Red and blue ceramic tiles are laid according to a pattern such that for every 21 red tiles used, 4 blue tiles are used. If a total of 400 tiles are used, how many of them are blue? Setup a proportion for this scenario (use z for your unknown number of blue tiles): If a total of 400 tiles are used there are 64 blue tiles.

Q: island has 12 fur seal rookies(breeding places). To estimate the fur seal pup population in Rookery…

A:

Q: In each shipment there is an average of 2%% of defective bolts. How many bolts can be expected to be…

A: (3).   An average of 212% bolts are defective. Therefore 212% of 360 dozen bolts are defective.

Q: Of 250 adults who tried a new multi-grain cereal, "Wow!", 187 rated it excellent; of 100 children…

A: Pooled Proportion: Let us suppose in a population of size N1 the number of members possessing a…

Q: The U.S. Air Force requires that pilots have heights between 64in and 77in. The heights of women are…

A: Obtain the percentage of woman meeting the height requirement. The percentage of woman meeting the…

Q: survey was given to 9090 high school students. They were asked if they preferred fiction or…

A: Given query is to find the percent of students in the survey,  prefer outdoor activities given they…

Q: In a class with 25 student there are 6 student very talentet in the subject of art. What percentage…

A:

Q: 1. A local news report claims that 40% of the vehicles on the freeways are vans or SUV's. You go to…

A:

Q: One month is what percentage of a year, given that there are 7 days in a week, 4 weeks in a months…

A: One month is what percentage of a year,  given that there are 7 days in a week, 4 weeks in a months…

Q: In a shipment of 500 light bulbs, 25 of them were broken. What percentage of the light bulbs were…

A: Given ,  In a shipment of 500 light bulbs , 25 of them were broken . We have to find the  percentage…

Q: Suppose r is .84, compute proportion of variation is explained?

A: From the given information, it is observed that r=0.84.

Q: find the sample proportion with n=1,120 and x=616

A: The random variable X is normally distributed. X ~ B (n, p) The sample size is 1120. The number of…

Q: Suppose you randomly select a card from a deck of cards. What are the odds against drawing an ace?…

A:

Q: In a sample of 45 men, 27 said that they had less leisure time today than they had 10 years ago. In…

A:

Q: Homer Simpson is interested in studying the ratio of the various colors of sprinkles on Lard Lad…

A: Introduction: Here, it is not mentioned whether the three donuts of each variety are chosen randomly…

Q: In a recent study, 46% of people enjoy country music.  If 200 people are surveyed about their…

A: Given : Proportion (prop.) of people enjoy country music p = 46% = 0.46 Sample size of people n =…

Q: If N= 36,500 and n = 387, what is the proportion?

A: Proportion is defined as the ratio of two similar quantities. Here, the proportion is defined as the…

Q: 40% of all people have cooties. 30% of all people play pattiecake and have cooties. What percent of…

A: Conditional probability is the chance of occurrence of an event given that another event has already…

Q: Find the mean of the 12 sampled ratios. =

A: Mean is defined as the sum of observations divided by number of observations. Number of observations…

Q: A proportion .40 of the tagged birds were recovered. 150 were tagged in all. How many were…

A:

Q: A management survey for a company surveyed 235 employees. 105 of the employees surveyed were…

A: Given, Number of employees= 235 Female employees= 105 Male employee % =?

Q: Each day, a weather forecaster predicts whether or not it will rain. For 80% of rainy days, she…

A:

Q: A company wants to determine the frequency of the occurrence of invoice error. Suppose that in a…

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Q: There are 20 fruits in a bowl. And 6 of them are apples. What percentage of the bowl are apples?

A: the formula to find the percentage is  percentage(%)=partwhole×100

Q: A parts store sells both new and used parts. Sixty percent of the parts in stock are used. Sixty-one…

A: Let,P(u)= percentage of used stockP(d)=percentage of defective stock.P(u U d) = percentage of used…

Q: Brad and Lena are recording their classmates' eye color for a statistics assignment. In Brad's…

A: Brad's class: green-eyed students = 3 total students = 25 ratio(A) = 325     Lena's class:…

Q: For a z-score of Z = -2.2, give the proportion in the body (hint: use the z-table), and state…

A:

Q: A long distance race begins with 28 runners from Team A and 28 runners from Team B. 4 runners from…

A: We have to solve given Questions.

Q: A seaside resort along the Pacific Ocean is equipped with an electronic shark detection system that…

A: Since multiple questions are given first question is answered step by step. Kindly repost for more…

Q: Suppose a​ 10-in. circular pizza costs​ $4.00. To find the​ price, x, of a​ 14-in. circular​ pizza,…

A:

Q: Poll Results in the Media USA Today provided results from a poll of 1000 adults who were asked to…

A: The data shows that the poll was conducted on 1,000 adults and 14% of adults chose pie as their…

Q: Red and blue ceramic tiles are laid according to a pattern such that for every 18 red tiles used, 7…

A: Given that for every 18 red tiles used, 7 blue tiles are used.  So in total (18+7)=25 tiles 7 are…

Q: a skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p,…

A: It is given that the skeptical paranormal researcher claims that the proportion of Americans that…

Q: 4. A survey shows 47% of movie goers are males. A test is conducted to see if the proportion is…

A: Solution : Null Hypothesis : The hypothesis to be tested is is called as null hypothesis. Generally…

Q: A survey of 1000 U.S. adults found that 33% of people said that they would not get any work done on…

A: From the given information, P = 33% and n = 1000  Formula for confidence interval for true…

Q: Find the probability that a randomly chosen point in the figure fies in the shaded region. Give…

A: Find the probability of the point chosen in the shaded region.

Q: (a) If you toss the coin 10 times, it will come up heads 5 times. (b) If you toss the coin a very…

A: Here use basic concept of expectation and MOE

Q: Hector is out on an archeological dig. He randomly selected 563 artifacts that he encountered at a…

A: Given Datan = no of artifacts encountered at a particular site = 563x = no of pottery shards =…

Q: you rolled a six-sided die 60 times and got the following tally. 20 ones, 20 twos, 15 threes, 3…

A: For a fair die, there are six equally likely outcomes, {1, 2, 3, 4, 5, 6}. That is, probability of…

Q: s comprise 65% of trees in the first orchard and 45% of trees in ards combined. What percentage of…

A: Let the number of trees in the first orchard be x and the number of trees in the second orchard be…

Q: In a Gallup poll of 1236 adult respondents, 6% said that bad luck follows breaking a mirror. That…

A: The margin of error expresses the amount of the random variation underlying a survey's results

Q: attacked and 85 per cent have been inoculated with vaccine ; what is the If in a village actually…

A:

Q: 2. In one town, 64% of adults have health insurance. W random from the town all have health…

A: Comment: As per the our company guidelines we are supposed to answer only one question. KIndly…

Q: An island has 12 fur seal rookeries​ (breeding places). To estimate the fur seal pup population in…

A: From the above details we have,

Q: Assuming a group has one uniform rate, 40% of the group receives a 10% rate increase and 60% of the…

A: We will consider that the group has total 100 members and each member of the group has a uniform…

Q: In a group of 50 children, 11 cannot swim. What percentage can swim?

A: Givenno.of children in a group=50no.of children cannot swim=11

Q: On a quick survey, respondents had to pick their favorite dessert from ice cream, cake, chocolate,…

A: Fraction of respondents pick ice-cream=25Fraction of respondents pick chocolate=13Fraction of…

Q: A radio talk show host with a large listening audience is interested in the proportion p of adults…

A: Given, A radio talk show host with a large listening audience is interested in the proportion p of…

Q: C1. A computer spam filter is 98% effective at sending spam emails to my junk folder, but will also…

A: Solution