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N76 [4]
2 years ago
5

there are 3 second grade classes at the sunshine school one has 22students and another has 20 students if there are 63 students

in the whole second grade how many are in the third class
Mathematics
2 answers:
alex41 [277]2 years ago
8 0
 there would be 21 in the last class
n200080 [17]2 years ago
7 0
u have to add 22+20 = 42 and subtract(-) 63-42 = 21 and 21 is ur answer 
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The probability of being 25-35 years and having a haemoglobin level above 11 is 34%.

The probability of having a haemoglobin level above 11 is 36%.

Being 25-35 years and having a hemoglobin level above 11 are not dependent on each other.

<h3>What are the probabilities?
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Probability determines the odds that a random event would occur. The odds of the event happening lie between 0 and 1.

The probability of being 25-35 years and having a haemoglobin level above 11 = number of people between 25 - 35 that have a level above 11 / total number of people between 25 - 35

44 / 128 = 34%

The probability of having a haemoglobin level above 11  = number of people with a level above 11 / total number of respondents

153 / 429 = 36%

To learn more about probability, please check: brainly.com/question/13234031

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Ill give brainliest for the answer and no guessing
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12350%

Step-by-step explanation:

. 76 - 34 = 42

. 42 divided by 34 = 1.23529411765

. 1.23529411765 multiplied by 100 = 123.529411765

. 123.529411765 ≈ 123.5 * 100 = 12350%

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