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OverLord2011 [107]
3 years ago
15

S and T are mutually exclusive events. Find p(s or t) p(s)=10/13, p(t)=1/3​

Mathematics
1 answer:
Arturiano [62]3 years ago
7 0

p(s) + p(t) = p(s or t)

just add the fraction together. remember denominators must be the same

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(10 POINTS) if you can answer ASAP
Ludmilka [50]

Answer:

A. -0.93

Step-by-step explanation:

It is a negative due to the scatter plot line decreasing as the precipitation increases, which cancels out C & D. Then, it is decreasing rapidly, which portrays it as closer to -1 than 0, meaning the answer is A.

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What is 4•4•4•4•4 in exponential form? And need the answer ASAP
MariettaO [177]

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Question
AlekseyPX

Answer:

The population mean is 5 volts

Step-by-step explanation:

Output voltage is assumed to be normally distributed, with standard deviation 0.25 Volts

s=0.25

n = 8

H_0:\mu = 5\\H_a:\mu \neq 5

Sample mean = \bar{x}=4.85

Since n < 30 and population standard deviation is unknown

So, we will use t test

Formula : t = \frac{x-\mu}{\frac{s}{\sqrt{n}}}

t = \frac{4.85-5}{\frac{0.25}{\sqrt{8}}}

t=-1.69

Refer the t table for p value

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So,t_{(df,\alpha)}=t_{7,0.05}=2.365

P value >α

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Hence The population mean is 5 volts

7 0
3 years ago
Math 2 Of high school
Daniel [21]

Answer:

  • B. BC = 18 so ∆ABC ~ ∆DEF by SAS

Step-by-step explanation:

\bf \cfrac{AB}{DE}  =  \cfrac{BC}{EF}

  • \bf \cfrac{15}{10}  =  \cfrac{BC}{12}
  • \bf  \cfrac{3}{2}  =  \cfrac{BC}{12}
  • \bf BC =  \cfrac{3}{2}  \times 12
  • \bf 3 \times 6
  • \bf BC = 18
  • \bf \angle B = \angle \: E

So, ∆ABC ~ ∆DEF by SAS.

<h3><u>------------------------------------</u></h3>
7 0
2 years ago
X fraction 2 - 5 = 25
xxTIMURxx [149]

Answer:

X=60

Step-by-step explanation:

X fraction 2 - 5 = 25

X/2-5=25

X/2 =25+5

X/2=30

X=60

60 is the answer

6 0
3 years ago
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