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Schach [20]
3 years ago
6

Jerry indicated that after tossing a penny 30 times, the relative frequency of heads was 0.47 (to the nearest hundredth). He ind

icated that after 31 times, the relative frequency of heads was 0.55. Are Jerry’s summaries correct? Why or why not?
Mathematics
1 answer:
natali 33 [55]3 years ago
4 0

Answer:

Incorrect.

Step-by-step explanation:

1 toss could not change the frequency by such a large margin 0.47 ---> 0.55.

The number of heads obtained in 30 tosses = 30 * 0.47 =  14.

So if the next toss came up heads the relative frequency of heads would be

15/31 = 0.48.

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uysha [10]

Answer:

-14

Step-by-step explanation:

You can find the amount of change by subtracting the original amount from the new amount.

11 - 25 = -14

Overall: Appropriate answer is, -14.

6 0
2 years ago
Four students are trying to find the rule that translates point N(–2, –4) to N prime (2, 4). Each student’s reasoning is shown b
liraira [26]

Answer:

Lo's answer is correct and it is a translation because applying the rule (x+4, y+8) on the coordinates N(-2, -4) will gives us N'(2,4).

Step-by-step explanation:

i) though Raheem is mathematically correct the question asks for a translation which means that we can only use addition and/or subtraction and not multiplication. So Raheem's answer is therefore incorrect.

ii) Casey's answer is incorrect as applying the rule (x+2, y+4) on the coordinates N(-2, -4) will gives us (0,0) and not N'(2,4)

iii) Andrew's answer is also incorrect as applying the rule (x+4, y+0) on the coordinates N(-2, -4) will gives us (2,-4) and not N'(2,4).

iv) Lo's answer is correct and it is a translation because applying the rule (x+4, y+8) on the coordinates N(-2, -4) will gives us N'(2,4).

6 0
3 years ago
Read 2 more answers
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Mars2501 [29]

9514 1404 393

Answer:

  (-3, 3)

Step-by-step explanation:

The blanks are trying to lead you through the process of finding the point of interest.

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The horizontal distance from T to S is <u> 9 </u>. (or -9, if you prefer)

The ratio you're trying to divide the line into is the ratio that goes in this blank:

Multiply the horizontal distance by <u> 2/3 </u>. (9×2/3 = 6)

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Multiply the vertical distance by <u> 2/3 </u>. (6×2/3 = 4)

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3 0
3 years ago
Explane why kequally 10 is the consentof proporitomally
Oxana [17]
I don't understand the question, could you please re-word it and if I know it I will give u the answer
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3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
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