PLs help me ASAP I DONT have time to answer this question, pls show proof on why it’s that answer, it also detects if it’s right or wrong. PLs help me ASAP I DONT have time to answer this question, pls show proof on why it’s that answer, it also detects if it’s right or wrong. PLs help me ASAP I DONT have time to answer this question, pls show proof on why it’s that answer, it also detects if it’s right or wrong. PLs help me ASAP I DONT have time to answer this question, pls show proof on why it’s that answer, it also detects if it’s right or wrong. PLs help me ASAP I DONT have time to answer this question, pls show proof on why it’s that answer, it also detects if it’s right or wrong. PLs help me ASAP I DONT have time to answer this question, pls show proof on why it’s that answer, it also detects if it’s right or wrong. PLs help me ASAP I DONT have time to answer this question, pls show proof on why it’s that answer, it also detects if it’s right or wrong.
A.
If:
j - the price of a glass of juice
p - the price of a pancake special
Then:
3j + 5p = 7.60
j + 2p = 2.90
b.
If:
j + 2p = 2.90
Then:
j = 2.90 - 2p
We can substite j in the first equation.
<span>If:
3j + 5p = 7.60
</span><span>j = 2.90 - 2p
</span>Then:
3×(2.90-2p) + 5p = 7.60
8.70 - 6p + 5p = 7.60
8.70 - p = 7.60
⇒ p = 8.70 - 7.60
⇒ p = 1.10
If:
<span>j = 2.90 - 2p
</span><span>p = 1.10
</span>Then:
j = 2.90 - 2×1.10
j = 2.90 - 2.20
j = 0.70
Thus, the price of a glass of juice is $0.70 and <span>the price of a pancake special is $1.10.
c.
If:
p = 1.10
j = 0.70
Then:
j + p = 1.10 + 0.70 = 1.80
Thus, </span><span>the bill for 1 glass of orange juice and 1 pancake special is $1.80.</span>
Slope is -12 and the form is y=Mx+b
First of all, you did not tell me much, how much is it for 1 hour of service?
Answer:
The probability is 0.0775
The expected value is 4.75 clubs
The standard deviation is 1.8875 clubs
Step-by-step explanation:
The variable X follows a binomial distribution, because we have n identical and independent events (19 cards) with a probability p of success and 1-p of fail (there is a probability of 1/4 to be club and 3/4 to be diamond, heart or spade). Then, the probability that x of the n cards are club is:
So, the probability P of drawing at least 8 clubs is:
P = P(8) + P(9) + P(10) + ... + P(18) + P(19)
Replacing, the values of x, from 8 to 19, on the equation above, we get:
P = 0.0775
Additionally, the expected value E(x) and standard deviationS(x) for this distribution is given by:
E(x)=np = 19(0.25) = 4.75
