4. The proportion of senior male students’ height is significantly higher than that of senior female students. 5. The average grade of Grade 11 students in Statistics is lower than their average grade in Calculus.

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Q: The researcher claims that the proportion of birth count in four quarters are equal. Th observed…

A: Null Hypothesis: H0: The proportion of birth count in four quarters are equal. Alternative…

Q: 4. If the sale of ice cream and pizza are independent, then as ice cream sales decrease by 60…

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Q: Use the figure to the right, which shows the percentages of adults from several countries who favor…

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Q: At a drug rehab center 23% experience depression and 38% experience weight gain. 12%

A: Given That, Let 'A' represent patient Experience depression          P(A)=0.23 Let 'B' represent…

Q: 11.32 The distribution of hemoglobin in grams per deciliter of blood is approximately N(14,1) in…

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Q: c. How could you proceed to find out how many of the eligible people would actually join the new…

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Q: A telemarketer calls people and tries to sell them a subscription to a daily newspaper. On 19% of…

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Q: Use the table below to answer this quesiton:   Leukemia  No leukemia  Exposed to benzene…

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Q: The boxplot below shows salaries for Construction workers and leachers. Construction Teacher 20 25…

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Q: 1) Is the amount of weight gained by rats who eat only junk food for four weeks ratio or interval…

A: Solution-: 1) Is the amount of weight gained by rats who eat only junk food for four weeks ratio or…

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: Here are the fuel efficiencies (in mpg) of 8 new cars. 45, 20, 45, 14, 34, 22, 18, 28 What is the…

A: Given information- We have given the data of the fuel efficiencies of 8 new cars (arranged in…

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: 14) A researcher at a major clinic wishes to estimate the proportion of the adult population of the…

A:

Q: A survey of 150 people revealed that 115 people like ketchup on their hot dogs, 85 people like…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule state that:

Q: b) What is your estimate of the percentages of individuals who sleep fewer than 6 hours, 6 to 6.9…

A: The data is given as:   Hours of sleep Age group 39 or younger 40 or older Fewer than 6 38 36…

Q: 1) what proportion of students scored above student 33 on homework 3? 2) what proportion of students…

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Q: 7.) How much does the Over the Rainbow Bakery sell 18 cupcakes for? 8.) What is the proportion of…

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Q: How to how to interpret scatterplots?

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Q: 5. Compute the point estimate for the difference in the proportion of orange colored pieces between…

A: We want to find the point estimate for the difference in the proportion of orange colored pieces…

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

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Q: Balance Middle East Asia 44% 46% Europe 6% Others America 3% 1% 2010 OFW Destination Middle Balance…

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Q: Two factory plants are making TV panels. Yesterday, Plant A produced 15,000 panels. Three percent of…

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Q: a. What percentage of adult men can fit through the door without bending?

A: Let , X be the height of men. Here , X→N(μ=67.1 , σ=3.6) Since , the door height is 56.2 in. Our aim…

Q: An assortment of coins contains 14 pennies, 16 nickels, 9 dimes, and 11 quarters. To three…

A: 1 penny = $0.01 1 nickel = $0.05 1 dime = $0.1 1 quarter = $0.25 Number of coins that have face…

Q: 19 2. How can you tell whether a greater percent of customers surveyed selected veggie burger or…

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Q: 1. If we add the same constant c to each item in a set of data, what do you think will happen to the…

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Q: 1. Use the results of the simulation to approximate the margin of error for Javier's estimate of the…

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Q: 6. The hospital would also like to estimate the Blue Shield as their insurance provider. A ra used…

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Q: Identify your hypothesis regarding the amount of time the two groups will stayed balance , do you…

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Q: 7. What percentage suffered for fewer than 61 hours?

A: Given that.   X~N( μ , ?^2 )   μ=83     , ?=20   Z-score =( x - μ )/?

Q: Arianna Estefan manages Salmon Falls Park, which has two flagship roller coasters, the Flyer and the…

A: Given Null hypothesis : H0 : µ1 = µ2Alternate hypothesis : Ha : µ1 < µ2,   where µ1 is mean…

Q: 2: The median age of the children is: 29 30.5 28.5 28

A: Given ages are, 36,42,18,32,22,22,25,29,30,31,19,24,35,29,26,36,24,28   Sort the data in Ascending…

Q: What proportion of the general population has an IQ of 70 or less?

A: It is an important part of statistics. It is widely used.

Q: What percentage of the widow Students are female

A:

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Q: 1. What percentage of the employees originated from within the organization? 2. What percentage of…

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Q: Here are the fuel efficiencies (in mpg) of 15 new cars. 49, 35, 17, 21, 27, 23, 45, 50, 39, 51, 41,…

A:

Q: d. What is the saving level that separates the top 25% of the workers surveyed from the rest?

A: Instruction :  The saving level that separates the top 25% of the workers will be the value present…

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Q: If the median house price is $1.9m, does that necessarily mean that half of the houses on the block…

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Q: The science club collected bottles for every class in Grade 6 for fund raising project. Section a…

A: The formula for average is Average=Sum of observationsNo. of observations. It is given that section…

Q: For each question, is the data quantitative or qualitative? ii. For each question, is the data…

A: The types of data are Qualitative data: Qualitative data are non-numerical data it is also called…

Q: What percentage of the widow students are  female

A: Total widowed students=2+3=5Total female students who are widowed=3

Q: What is the proportion of free apps available in the App store?

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Q: (a) What proportion of combined GRE scores can be expected to be over 163.4? (b) What proportion of…

A: mean = 150 s = 8.8

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Q: (a) Estimate the true proportion of all such students who own a Texas Instruments calculator. (b) Of…

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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.