A researcher asks participants to estimate the calories they consume in a meal. The researcher records the following estimates: 450, 426, 31

Question

A researcher asks participants to estimate the calories they consume in a meal. The researcher records the following estimates: 450, 426, 310, 500, and 220. If the researcher removes the estimate of 220 (perhaps because the participant drops out of the study), then the value of the mean will:_____________

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Eva 3 weeks 2021-09-26T06:57:33+00:00 1 Answer 0

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    2021-09-26T06:58:44+00:00

    Answer:

    Increase

    Step-by-step explanation:

    The researcher records the following estimates: 450, 426, 310, 500, and 220.

    The mean of these estimates is derived below.

    Mean = (450+426+310+500+220)/5

    =1906/5=381.2

    If the researcher removes the estimate of 220.

    The mean of the other numbers will be:

    Mean =(450+426+310+500)/4

    =1686/4=421.5

    By comparison of the two mean, we can see that the value of the mean will increase.

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45:7+7-4:2-5:5*4+35:2 =? ( )