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Aloiza [94]
2 years ago
5

Luis has 8 baseball cards, 10 football cards, 4 hockey cards, and 14 basketball cards. All the same size and shape. Luis will se

lect one card at random. What is the probability that the card selected will be a hockey card?
Mathematics
1 answer:
muminat2 years ago
6 0
Add them all together: 36
Hockey card probability: 4/36
Simplify: 1/9
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A set of average city temperatures in May are normally distributed with a mean of 20.66 ^\circ \text{C}20.66
Angelina_Jolie [31]

Answer:

0.9962

Step-by-step explanation:

The z score shows the number of standard deviations by which the raw score is above or below the mean. If the raw score is above the mean then the z score is positive but if the raw score is less than the mean then the raw score is negative. The z score is given by:

z=\frac{x-\mu}{\sigma}\\ \\\mu=mean,\sigma=standard\ deviation, x=raw\ score

μ = 20.66°C, σ = 2°C

For x < Singapore temperature, i.e. x < 26

z=\frac{x-\mu}{\sigma} =\frac{26-20.66}{2}=2.67

From the normal distribution table P(x < 26) = P(z < 2.67) = 0.9962

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3 years ago
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Leno4ka [110]
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AVprozaik [17]

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Step-by-step explanation:

<u>Question 7</u>

Angle formed by 2 chords is half of the sum of the intercepted arcs

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<u>Question 8</u>

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3 0
3 years ago
A = 7+10n help me plz​
Marrrta [24]

Answer:

I'll help you out. Question: Are you solving for A or for N?

If you're solving for A: A=10n + 7

If you're solving for N: Isolate the variable by dividing each side by factors that don't contain the variable. n = A/10 - 7/10

Hope this helped!

Step-by-step explanation:

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3 years ago
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artcher [175]
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2 years ago
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