What is the Surface area of a square pyramid if

15 POINTS AND WILL MARK BRAINLIEST Help?? Pleasee

Rom4ik [11]

The experimental probability is calculated based on the results of the experiment; since the name Ted was chosen 26 times out of 123, the experimental probability is $\boxed{\frac{26}{123}}.$

Typically, the theoretical probability assumes that events are chosen randomly; since the name Ted is one of the 6 in the hat, the theoretical probability is $\boxed{\frac{1}{6}}.$

If we increased the number of names in the hat, we would expect both the experimental and theoretical probability to decrease, since there are now more names to choose from. Similarly, if we decreased the number of names in the hat, the experimental and theoretical probability would increase.

6 0

3 years ago

If my car averages 27 miles to the gallon, how many miles can I drive on3/4 tank of gas

AURORKA [14]

Answer:

20.25 miles

Step-by-step explanation:

If your car travels 27 miles on a full tank of gas, then your car will travel $27\cdot\frac{3}{4}$ miles on $\frac{3}{4}$ tank of gas.

$27 \cdot 0.75 = 20.25$

I hope this helped!

7 0

3 years ago

It is estimated that approximately 8.23% Americans are afflicted with diabetes. Suppose that a certain diagnostic evaluation for

allsm [11]

The probabilities in this problem are given as follows:

a) False positive: 0.0321 = 3.21%.

b) Diagnosed as not having diabetes: 0.8872 = 88.72%.

c) Actually has diabetes, if diagnosed as not having: 0.0019 = 0.19%.

<h3>What is Conditional Probability?</h3>

Conditional probability is the probability of one event happening, considering a previous event. The formula is given as follows:

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which the parameters are described as follows:

P(B|A) is the probability of event B happening, given that event A happened.

$P(A \cap B)$ is the probability of both events A and B happening.

P(A) is the probability of event A happening.

For item a, we have that:

100 - 8.23 = 91.77% of the people do not have diabetes.

Of those, 3.5% are diagnosed with diabetes.

Hence the probability of a false positive is given as follows:

p = 0.9177 x 0.035 = 0.0321 = 3.21%.

For item b, the percentage of people who is not diagnosed as having diabetes is divided as:

96.5% of 91.77% (do not have diabetes).

2% of 8.23% (have diabetes).

Hence the probability is:

P(A) = 0.965 x 0.9177 + 0.02 x 0.0823 = 0.8872 = 88.72%.

For item c, we find the conditional probability, as follows:

$P(A \cap B) = 0.02 \times 0.0823 = 0.001646$

Then:

P(B|A) = 0.001646/0.8872 = 0.0019 = 0.19%.

More can be learned about probabilities at brainly.com/question/14398287

#SPJ1

7 0

1 year ago

Your brother is 1/2 your age. Your sister is 5 years older than your brother. Your sister is 15 years old. Write and solve an eq

nydimaria [60]

Answer:

a=2(s-5)

a(your age): 20

Step-by-step explanation:

a stands for your age

s stands for sister

a=2(s-5)

1-substitute 15 for s a=2(15-5)

2- a=2(10)

the 15-5 stands for sisters age minus five which gives you brothers age, 10. You multiply it by two because your brother is half your age.

3-a=20

check your work:

because your brother is 10 and you are 20, he is half your age (10/20 can be simplified to 1/2)

Hope this helped, if you have any other questions please lmk!

3 0

3 years ago

Find value of x (2x+7)=(3x-52)

Gnoma [55]

Step 1: Subtract 3x from both sides.
−x+7=−52

Step 2: Subtract 7 from both sides.
−x+7−7=−52−7
−x=−59
Step 3: Divide both sides by -1.‌
−x−1‌=‌−59−1‌
x=59

8 0

3 years ago

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