The list of individuals from which a sample is actually selected is called the sampling frame. Ideally, the frame should list every individual in the population, but in practice, this is often difficult. A frame that leaves out part of the population is a common source of undercoverage. (a) Suppose that a sample of households in a community is selected at random from the telephone directory. Which households are omitted from this frame? households without telephones, those with only cell phones, and those with unlisted numbers households that do not answer the phone households that refuse to take part in surveys households with more than one telephone line What types of people do you think are likely to live in these households? These people will probably be underrepresented the sample. Select all that apply. those with extra time on their hands those who choose not to have landline phones those who can afford to have multiple phone lines those who do not wish to have their phone numbers published those who cannot afford a phone (b) It is usual in telephone surveys to use random digit dialing equipment that selects the last four digits of a telephone number at random after being given the exchange (the first three digits). Which of the households underrespresented in the sample will be included in the sampling frame by random digit dialing?

Q: Four less than the product of six and a number a is eight

A: Given: Four less than the product of six and a number a is eight.     To determine: Number 'a'

Q: Dg.2

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Q: How do I solve?

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Q: Hello, can you explain the first section of the question. Thank yu

A: Function f(x,y)  take maximum and minimum value at its critical points

Q: How do I solve?

A: Given graph is a straight line so

Q: Can you also help me with 10? I'm having a hard time solving it.

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Q: My question was how to solve it ? I neeed to know how to do it step-by-step too.

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Q: How do I solve?

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Q: Sorry I can't see the solution it's too messy, could you please write the answer part again please

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Q: thanks for the help but could you solve for d as well as I asked?

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Q: Please solve 5CA - 10A.

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Q: How do I solve?

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Q: How do I solve?

A: If fx is any function. Then their translation function is given by: gx=fx-a+b Where a denote the…

Q: Michael sells 3-gallon jugs of water and 5-gallon jugs of water. If James buys eight jugs and 32…

A: Let person J bought x numbers of 3-gallon jugs and y numbers of 5-gallon jugs . Hence, the total…

Q: 100 less than 6 times a number is equal to the number increased by 150. What is the number ?

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Q: How do I solve?

A: A) Since every year, total reserves decrease by 16 billion barrels of oil, therefore: R=2000-16t,…

Q: How do I solve?

A: Consider the provided graph,

Q: Can you solve this ecuation? 2x=16

A: Solving for x

Q: How do I solve?

A: A linear equation needs two parameters - the slope and the intercept. The slope is the amount of…

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Q: Let x = 1 and then x = 2 in the equation x + 5 = x + 6. Iseither number a solution? How many…

A: Given :An equation x+5=x+6and given x=1,x=2

Q: How do I solve?

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Q: 디 EX tx

A: We need to solve the inequality.

Q: Nine more than a number is 12

A: See this solution in below.

Q: The product of 2 and 8 is more than 8? T/F

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Q: Answer the rest of the question in full solutions and details

A: Given that,gx=2x2-50x2+8x+15The asymptotes, end behaviour, intercepts are determined as shown below.

Q: Explain step by step the process of solving 4x=11

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Q: How do I solve?

A: Given:       y>12x−1y<−4x−2

Q: Please help me understand how to solve:   22n  +1 the answer has to be a composite number

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Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products. 

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.