The trunk diameter, in centimeters,  of a certain variety of pine tree is represented by X~N(150, 30).  What is the z-score for a tree with a diameter of 180 centimeters?

Q: The number of students in classes P, Q, R and S is 6:5:3:2 respectively. The total marks scored by…

A: Introduction :

Q: Mean of 4, 5 and 6 is ____ ?

A: We have to find mean

Q: If 3% of the thermometers are rejected because they have readings that are too high and another 3%…

A: Solution:From the given information, the 3% of thermometers are rejected because that is having…

Q: After the premiere of the new comedy Bumblebee, moviegoers were asked in a quick poll whether they…

A: Solution:  Given information: n= 20  number of adults  x= 14 adults like the movie  m= 100 number of…

Q: should i write it with variables like x = 11, y = 11, z = 4? but it says exact number, no tolerance.…

A: The answer has exact form. You will not have to enter the variables.

Q: Evaluate the intergrals. ∫ 6dz / z4

A: To find integration of  ∫ 6dz / z4

Q: There are 1,024 players in a tennis tournament. In Each round, half the players are eliminated.…

A: Given No. of players in the tennis tournament =1024and in each round half of the players are…

Q: After the LA marathon two runners where comparing their z-score. Runner one had a z-score of -1.34…

A: A z-score is a standard score that indicates the number of standard deviations a data value is far…

Q: To get into the 250 Club, a bowler must score an average of 250 for a three-game series. If a bowler…

A: Average score is 250 for a three game series.

Q: the pace factor of a random man was recorded to be 0.76 meters per step. if there is 2.7% margin of…

A:

Q: Qvestivr C-

A: question on co-ordinate geometry

Q: When a carton of apples were packed into bags of 4, there would be 3 apples left over. When the same…

A:

Q: After the results of a chess tournament are announced, someone noticed that each player scored…

A: The winner of the tournament will win against the last 3 players. He will score 3 points from them…

Q: 2. Differentiate: y=7*in¨"x

A: Since you have asked multiple questions in single request so we  will be answering only first…

Q: What is the error in the sum of the 400 coins.

A: Suppose you are the master of the mint. If you sample 400 coins and the king has set the error…

Q: 2. Amelia and Zerin are creating a pattern on the sidewalk with chalk. Amelia starts her pattern…

A: Given Amelia and Zerin are crating patterns on sidewalk with chalk.  Amelia starts her pattern with…

Q: Sonal received a 76 on their chemistry exam (class u = 72, σ = 8).  Ang received a 82 on their…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: From a group of 30 patients receiving a standard chemotherapy treatment for lymphoma, 5 can be…

A: As per the question, 5 people has to be chosen out of 30 patients.

Q: Find mZF. 4/30 G 4/30 E mZF %3D Submit

A: We have to find the angle

Q: for every 12 girls at svms there are 8 boys if there 2,400 total students predict the actual number…

A: Given that for every 12 girls at svms there are 8 boys. So, girls: boys= 12:8 Given total number of…

Q: A student in COBU260 course scores 80 points out of a possible 110 in the first half of the…

A: Given Data: Let A and B be the score in two half respectively A=80 out of 110 B=x out of 140

Q: The rabbit population in a forest area grows at the rate of 9% monthly. If there are 160 rabbits in…

A: Given, The rabbit population in a forest area grows at a rate of 9% monthly, In July there are 160…

Q: What is the correct evaluation of x2 - y2 - z2, when x is equal to -2, y is equal to 3 and z is…

A:

Q: Martina is a stats keeper for the local youth soccer league. At the end of the season, she…

A: The number of players in a random group is 30.

Q: Mrs. Dronamraju has 30 tall plants. Fifteen of her plants have a height of 1.60 m and the remaining…

A:

Q: In a customer service center, there are 18 complaints dropped per minute. What is theprobability…

A:

Q: sketch the preceujse - def med tunctror -32+2 if x <3 far. for 2. of 3<Y<S

A:

Q: What is the correct evaluation of 3x - 2y, when x is equal to -1 and y is equal to 1?

A: We have to find the correct evaluation of 3x - 2y, when x is equal to -1 and y is equal to 1.

Q: The mode for our class on Exam 3 was 74%.  That means that at least one student in our class scored…

A: Mode is the value that is maximum repeated. So, at least one person have scored the marks same as…

Q: A cereal box manufacturer makes 32-ounce boxes of cereal. In a perfect world,the box will be…

A: Given size of the box = 32 ounce they allow a difference of 0.06 ounce.

Q: If the coefficient of determination between two independent variables is 0.23​, what is the​ VIF?

A:

Q: A transmission line between two pylons hangs so that it’s height is described by y = 30 cosh(x/30)…

A: Putting y=60 solve for x:

Q: Why ane absoluete value bars necelsary in the ancuees for some integrels, and not in others?…

A:

Q: The pass result of 50 students who took up a test is given below : Marks No. of students 4 5 10 6.…

A:

Q: Differentiate from first principle y = 5x²³² +22² +32 +4

A:

Q: For 30 recent Academy Award ceremonies, ages of Best Supporting Actors (x) and ages of Best…

A: Introduction: It is required to predict the age of Best Supporting Actress in 1982, when the age of…

Q: Suppose X ~ N(2,3). What value of x has a z-score of -0.67?

A: Given, X ~ N(2,3) Implies, Mean = 2 Standard deviation = 3

Q: Similarly, for F2, since the middle third of each side of F1 is removed and replaced with two line…

A:

Q: A scientist investigated the effect of​ cross-fertilization on the heights of plants. In one​ study,…

A: Given that d=19.00 and sd=35.50 The 99​%confidence interval is from ____ eighths of an inch to_____…

Q: Last week Tim got a score of X = 54 on a math exam with μ = 60 and σ = 8. He also got X = 49 on an…

A:

Q: Maximize =3x, +2x, +x, 2.x, +x, +x, s150 Subject to 2x, +2x, +8x, s 200 2x, +3x, +x, 5 320 with x…

A: Given, Maximize z =3x1+2x2+x3Subject to 2x1+2x2+x3≤1502x1+2x2+8x3≤2002x1+3x2+x3≤320with,x1≥0, x2≥0,…

Q: How does expressed symbolically between-rows sum of squares?

A: The sum of squares is the sum of the variation square, where variation is defined as the dispersion…

Q: If there were a 1000 runners in a race, how many of them got a z score of 3 or better for the race

A:

Q: For a large supermarket chain in Florida, a woman's group claimed that female employees were passed…

A: It is given that the population proportion, P is 0.40. A sample of size 40 is considered. Here, the…

Q: A media personality argues that global temperatures are not rising, because every year an increase…

A: Given that the difference between the temperatures of two consecutive years is 0.08  That means the…

Q: Find the indicated value. fx(9,1) if f(x,y)=9x²y - 5xy³ fx(9,1)= (Type (Type an integer or a…

A:

Q: 2. Amelia and Zerin are creating a pattern on the sidewalk with chalk. Amelia starts her pattern…

A: Given that the Amelia starts her pattern with  0 and 3 every time, Zerin starts her pattern and add…

Q: The bar graph shows the number of fatal vehicle crashes per 100 million miles driven for drivers of…

A:

Q: After an election, of those surveyed, 56 percent voted for the Democrat candidate, 39 percent voted…

A: After an election, of those surveyed, 56 percent voted for the Democrat candidate P(D)=56%…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.