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crimeas [40]
3 years ago
14

Claire sat a spanish test and a french test In the spanish test she scored 27 out of 32 In the french test she scored 19 out of

21 In which test did she do better?
Mathematics
1 answer:
balu736 [363]3 years ago
7 0

Answer:

French test

Step-by-step explanation:

We first calculate the scores as percentages:

#Spanish test:

=\frac{score}{total}\times 100\%\\\\\\=\frac{27}{32}\times 100\%\\\\=84.38\%

#For the French test, her percentage is:

=\frac{score}{total}\times 100\%\\\\=\frac{19}{21}\times 100\%\\\\=90.48\%

Since, 90.48$>84.38%, Claire did better in the French test.

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How to find the area under the standard normal curve between z 1.5 and z 2.5?
alisha [4.7K]
It is possible to calculate mathematically the area under the normal curve between any two values of z.
However, tables/software have been developed to give the areas under the normal curve to the left of particular values of z.  The function is the probability of Z<z, or P(Z<z).
The area between two values z1 and z2 (where z2>z1) is therefore 
P(Z<z2)-P(Z<z1).

For example, to find the area between  z1=1.5, z2=2.5
is 
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=0.99379-0.93319
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(above values obtained by software, such as R)
For example, the value P(Z<2.5) can be calculated using
P(Z<2.5)=erf(2.5/sqrt(2))/2+1/2
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3 years ago
What is this answer! (-3)(8)
Vladimir [108]

Answer to question:

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7 0
2 years ago
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This exercise involves the formula for the area of a circular sector. The area of a circle is 700 m2. Find the area of a sector
mezya [45]

Answer:

334.4 m²

Step-by-step explanation:

The formula for the area of a sector is given as:

1/2 × r² × θ

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2 years ago
2. There are 42 persons in a mathematics class, and everyone of them drinks either coffee or grape milk at
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Answer:

1.  8

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