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3 years ago

a normally distributed data set has a mean of 35 and a standard deviation of 2.5 what z-score corresponds to a data value of 32

Mathematics

1 answer:

Oksanka [162]3 years ago

7 0

$z=\dfrac{32-35}{2.5}=-1.2$

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What is parallel to 2x-y=1 and contains (4, -6)? Please show your work!

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3 years ago

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3 years ago

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Find the oth term of the geometric sequence 9, -18, 36, ...

Sphinxa [80]

Answer:

2304

Step-by-step explanation:

Given :-

A geometric sequence is given to us which is 9 , -18 , 36.

And we need to find out the 9th term of the sequence. Here firstly we should find the Common Ratio and then we can substitute the respective values in the formula to find the nth term of a geometric sequence .

Common Ratio :-

$:\implies$ CR = -18÷ 9 = -2

The 9 th term :-

$:\implies$ T_n = arⁿ - ¹

$:\implies$ T_9 = 9× (-2) ⁹ - ¹

$:\implies$ T_9 = 9 × (-2)⁸

$:\implies$ T_9 = 9 × 256

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3 years ago

The amount of a chemical solution is measured to be 2 liters.

Dafna1 [17]

2 liters" only shows one significant figure. This "2 liters" can be anything from 1.9 liters to 2.1 liters. Actually, to be more strictly correct, the 2 liters can be between 1.5 liters and 2.4 liters. Either of these bounds would be 2 to the nearest ONE's place.

The biggest percent error would be between 2 and 1.5, which is a volume error of 0.5 liters.

Thus: (0.5/2)*100=25% C: is your Answer

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3 years ago