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djverab [1.8K]
2 years ago
8

Students in a class have to choose 4 out of 7 people who were nominated for the student council. How many different groups of st

udents could be selected?
Mathematics
1 answer:
Lady_Fox [76]2 years ago
3 0

Answer:

35

Step-by-step explanation:

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a seed company has a test plot in which it is testing the germination of a hybrid seed, They plant 50 rows of 40 seeds per row.
ziro4ka [17]

Answer:

Mean =\sum x P(x) = 36.86

Standard deviation =\sum x^2P(X)=1360.9

Step-by-step explanation:

x          P(x) x \times P(x)       x^2 \times  P(x)

33         0.02     0.66          21.78

34          0.06     2.04         69.36

35           0.1      3.5        122.5

36           0.2      7.2         259.2

37           0.24     8.88        328.56

38           0.26     9.88        375.44

39            0.1     3.9         152.1

40            0.02     0.8         32

             1        36.86      1360.9

We are supposed to find mean and standard deviation

Mean =\sum x P(x) = 36.86

Standard deviation =\sum x^2P(X)=1360.9

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3 years ago
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What is the simplest form for 28 out of 32
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Answer:

Ans = 7/8

Step-by-step explanation:

28 out of 32

= 28/32

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Consider the graph of the cosine function shown below.
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Answer:

a. The amplitude should be 2.

   The period should be 2\pi.

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Step-by-step explanation:

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