4. For X bar = 55.00 and S = 7.00, between what two values do %3D approximately 95% of the cases lie in a normal distribution?

Q: A vertical line is drawn through a normal distribution at z = -1.20. What proportion of the…

A: Given - z = -1.20 Graph will look like and need to the shaded region -

Q: According tố thể the area under the normal distribution, proximately what percent of the data should…

A: The statement is given.

Q: d) Due to the symmetry of the normal distribution we know that P(X > 28) = P(X < ).

A: GivenMean(μ)=44standard deviation(σ)=8Let "X" be the length(in cm) of aneel

Q: Which proportion of a normal distribution is located between the mean and z = +1.40? 0.9192 0.0808…

A: Solution-: Let, Z- be the standard normal random variable We want to find proportion of a normal…

Q: What proportion of a normal distribution is located between z = 0 and z = +1.50?

A: Given that.   X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)    Z-score =( x - μ )/?

Q: In a symmetric distribution with HH = 48 and standard deviation o = 3 Approximately what percent of…

A:

Q: Based on the graph of this normal distribution, a. The mean is b. The standard deviation is c. 68%…

A:

Q: For a normal distribution 12% of the items are under 47 and 86% are under 65. Find the corresponding…

A:

Q: A normal distribution has a mean of μ = 70 and a standard deviation of σ = 8. For each of the…

A: Given information Mean μ = 70 Standard deviation σ = 8

Q: No matter what the mean and standard deviation is for a normal distribution, if we take one standard…

A:

Q: According to the Distribution of Z table, ______ % of area is above a Z value of 1.20?

A:

Q: For a Normal distribution with μ=11.9μ=11.9 and σ=2.9σ=2.9. What proportion of observations have…

A: Obtain the standard z-score for the random variable equals 7. The standard z-score for the random…

Q: 5.4 For a normal distribution where the mean is 50 and the standard deviation is 10, what percentage…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: For the normal distribution of burning times of electric light bulbs, with a mean equal to 1200…

A:

Q: A vertical line is drawn through a normal distribution at z- 1.20. What proportion of the…

A: Given, A vertical line is drawn through a normal distribution at z=1.20.

Q: A normal distribution has a mean of mu = 80 with o = 20. What score separates the lowest 30% of the…

A:

Q: Solve and sketch the problem. Given a normal distribution with population mean is 21 and population…

A: Let X be the random variable from normal distribution with mean (μ) = 21, variance (σ2) = 64 then…

Q: Given the figure above is a normal curve, The greatest proportion of the scores would be between…

A: Given the figure above is a normal curve, The greatest proportion of the scores would be between…

Q: Mr. Jackson is looking at test scores for his Algebra 2 class. The scores on the Unit 2 Test follow…

A: The percent of learners scored 86 or better is,

Q: For a normal distribution where the mean is 50 and the standard deviation is 10, what percentage of…

A: Consider the provided question, For a normal distribution where the mean is 50 and the standard…

Q: If the weights of 8000 men follows a normal distribution with mean 67 kg. and the standard deviation…

A: Disclaimer: Since you have asked multiple questions, we will solve the first question for you. If…

Q: For a certain normal distribution, the first moment about 10 is 40 and the fourth moment about 50 is…

A:

Q: Suppose that 35% of all adults in a population would say “good” and 65% would say “bad” if they were…

A: It is given that a sample of 1,000 adults from a population is randomly selected and the population…

Q: (a) What percentage of the area under the normal curve lies to the left of ?? (b) What…

A: As these are the standard observations of the area under the normal curve so we have to learn these…

Q: On a standardized test with a normal distribution, the me was 64.3 and the standard deviation was…

A: We have given that  The scores follow the normal distribution with mean 64.3 and standard deviation…

Q: d) Assume that the mean and standard deviation of this lacrosse team are the same as the mean and…

A:

Q: A normal distribution has a mean of u = 80 with o = 20. What score separates the highest 40% of the…

A: It is known that the mean μ=80 and the standard deviation σ=20.

Q: 5.4. For a normal distribution where the mean is 50 and the standard deviation is 10, what…

A:

Q: What proportion of a normal distribution is located between z = -1.25 and z = +1.25?

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ  are the mean…

Q: For a normal distribution with µ = 64 and σ = 9,

A:

Q: If the area to the left of x in a normal distribution is 0.41, what is the area to the right of x?…

A:

Q: What proportion of a normal distribution is located in the tail beyond z = 1.50?

A: It is given that the z-score is 1.50. The proportion of a normal distribution is located in the tail…

Q: 4. Assuming a standard normal distribution, if the mean of a set of da the standard deviation was 8,…

A: Note: According to Bartleby guidelines, expert solve only one question and maximum 3 subpart of the…

Q: Assume that the weight of 1-year-old girls in the USA is normally distributed with Mean = 9.5 kg,…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer first…

Q: About what percent of x values from a normal distribution lie within two standard deviation (left…

A: 68-95-99.7-rule: For a normal distribution having mean µ and standard deviation σ, then according to…

Q: The distribution of scores on the SAT is approximately normal with a mean of m = 500 and an SD of s…

A: Given: Mean (m) = 500, SD (s) = 100 Let X is the scores on the SAT which is normally distributed.

Q: Suppose X has a normal distribution with mean 80 and standard deviation 5. What is the 90th…

A: Given that, Mean = 80 Standard deviation = 5

Q: What proportion of a normal distribution is located between the mean and z = 1.40? a.…

A: P(0&lt;z&lt;1.40)=?

Q: It is determined that for a particular species of tree, the diameter of the trunk is best modeled…

A:

Q: Which proportion of a normal distribution is located between the mean and z = +1.40? 0.9192 0.0808…

A: Given : z₁=mean = 0 z₂=1.40

Q: Oil field studies have shown that permeability measurements are having a normal distribution with a…

A: Let, X= permeability measurements  Given that X follows a normal distribution with mean 68 and…

Q: A data set is normally distributed with a mean of 6363 and a standard deviation of 10.4.10.4. What…

A: Let X be the data value which follows normal distribution with mean 63 and standard deviation 10.4.…

Q: Assume that X has a normal distribution where the mean is μ= 15.2 and the standard deviation is σ=…

A: The mean is 15.2 and the standard deviation is 0.9.

Q: A normal distribution has a Mean of 25 and a S.D. of 10. Find the probability that the deviation…

A:

Q: A test was given to 120 students, and the scores 8 approximated a normal distribution. If the mean…

A:

Q: For a Normal Distribution with mu equal to negative one and sigma equal to two, where does…

A: Given that, Mean = -1 Standard deviation = 2

Q: 16. Suppose that the vehicle speeds at an interstate location have a normal distribution with a mean…

A: Note- Since you have posted multiple questions, as per our guidelines we are supposed to answer only…

Q: Find the quartiles of the Normal distribution having mean 60 and S.D 10.

A:

Q: Solve the problem. 10) For a standard normal distribution, find. the percentage of data that are…

A:

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.