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Karolina [17]
3 years ago
10

If a heart beats 30 times in 40 seconds. How many times will it beat in 1 year?

Mathematics
2 answers:
Murljashka [212]3 years ago
7 0

Answer:

10950

Step-by-step explanation:

1 year = 365

365 × 30

10950

sdas [7]3 years ago
7 0

Answer:

23,652,000 per year

Step-by-step explanation:

30 times in 40 seconds=15 times in 20 seconds

that's 45 times in one minute

45per min x (60m/hr) x (24hr/day)=64,800 per day

x (365 days per year)=23,652,000 per year

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Answer:

The most appropriate inferential statistic test in the present situation is the;

b. Two-sample t-test

Step-by-step explanation:

From the question, we have;

The number of subjects in each sample, n₁ = 100

The number of samples = 2

The nature of the test = To compare the two means

The value of the population standard deviation, σ = Unknown

From the given parameters, we have;

The t-test is a method of inferential statistics for determining whether the difference between the mean of two groups is significant, that is if the observed difference are due to chance, where the groups are likely to have some characteristics that are related

The t-test is utilized when testing an hypothesis, and it is used for small samples, where the population standard deviation is unknown

The types of t-test used are;

a) One-sample t-test

b) Two-sample t-test

c) Paired Sample t-test

Therefore, a two-sample t-test is most appropriate.

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3 years ago
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In the first year of a 10,000 investment the interest rate was 6%. All earned interest remained invested for the second year, an
Aleks04 [339]

Answer:

13.4%

Step-by-step explanation:

First year:

$10,000*6% = $600

New balance = $10,600

Second Year:

$10,600*7% = $742

$10,600+ $742 = $11,342

Total Return:

Final Balance - Initial balance

$11,342 - $10,000 = $1,342

$10,000*x ÷ $1,342

x = $1,342/$10,000

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3 years ago
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katen-ka-za [31]

Answer:

Yes, because the plot shows no apparent pattern.

Step-by-step explanation:

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3 years ago
if Mr. Davis ate 20 of the 50 chocolate chip cookies from the bag,what percent of the bag of cookies did he eat?
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Answer:

He ate 40% of it

Step-by-step explanation:

20/50 is 2/5, which is basically 4/10 therefore equaling 40%

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