3 years ago

Please help with math problem

Mathematics

2 answers:

Svetlanka [38]3 years ago

6 0

V=-2ax+a exponent 2 on the last a

Evgesh-ka [11]3 years ago

3 0

V=-2ax+a Exponent 2 on the last a

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The chance of rain is 20%, the chance of it being sunny is 60%, and the chance of it

Charra [1.4K]

Answer:

0.6 = 60% probability that it is either sunny or rainy.

Step-by-step explanation:

We solve this question treating these events as Venn probabilities.

I am going to say that:

Event A: Rain

Event B: Sun

The chance of rain is 20%

This means that $P(A) = 0.2$

The chance of it being sunny is 60%

This means that $P(B) = 0.6$

The chance of it being sunny and rainy at the same time is 10%.

This means that $P(A \cap B) = 0.1$

Calculate, the probability that it is either sunny or rainy.

This is:

$P = P(A) + P(B) - 2P(A \cap B) = 0.2 + 0.6 - 0.2 = 0.6$

0.6 = 60% probability that it is either sunny or rainy.

3 0

3 years ago

I can create and use a graph to predict values and justify my results? Help me with this please I would appreciate it

mestny [16]

Answer:

simple even tho im in 6th grade it would be over $100

5 0

3 years ago

Eloise made a list of some multiples of 8/5 . Write 5 fractions that can be in Eloise list.

Kaylis [27]

16/10
24/15
32/20
40/25
48/30

4 0

3 years ago

determine the sample sieze erequired to estimate teh mean score on a standardizes test within 4 [pints of the trrue mean with 98

Andreas93 [3]

Answer: Minimum sample size = 110

Step-by-step explanation:

Formula to find minimum sample size :

$n=(\dfrac{z\times s}{E})^2$ , where z = critical z-value for confidence level, s= sample standard deviation , E = margin of error

Given: E= 4 , s= 18

Critical z-value for 98% confidence = 2.327

So, $n=(\dfrac{2.327\times18}{4})^2$

$=(\dfrac{41.886}{4})^2\\\\=(10.4715)^2=109.65231225\approx110$

Minimum sample size = 110

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3 years ago

What 4 out 100 in percent

kumpel [21]

Answer:

Step-by-step explanation:

3 0

4 years ago

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