Answer:
5 right/left , 3 up/down
Step-by-step explanation:
Looking at the Graph count the rise/run of a point.
Step-by-step explanation:
velocity = distance/time taken
distance=velocity ×time taken
distance=80×4
distance=320kilometers
Answer:
a. No, Returned questionnaires can't be regarded as a random sample of households.
b. Non Response Bias
Step-by-step explanation:
a. Among the 500 households only 80 responses to the survey. This type of sample can't be regarded as a random sample. Because it is possible that the question asked to people contain any embarrassing information that peoples refuse to answer the questionnaire.
b. This type of bias is known as Non-Response Bias.
Further, Non Response bias can be considered as, In conducting a survey some people did not respond to our survey, this sometimes affects our survey result very much.
For Example: It can happen that some people may refuse to participate in a survey, as the question asked to people contain personal detail or illegal activities or asking any embarrassing information, so people refused to participate in the survey. This non-response causes the results of the survey to be biased.
In order to find your answer you would take $8,425 and multiply it by 0.15 and you would get $1,263.75 as your final answer.
Straight away you can exclude first because slope here +4. And consider remaining three answers.
Next step is to calculate y if x = 8 (from point (8,-7))
2) y=-4 *8-25 = -32-25 - it's not -7
3) y=-4*8+25 = -32+25 = -7 - huray!
Answer: <span>y = -4x + 25</span>