Guyss help me out on this one

Mathematics

2 answers:

irakobra [83]3 years ago

8 0

P(x) = C(5,X) *0.3^x *(1-0.3)^5-x

x = 0

P(0) = C(5,0) *0.3^0*0.7^5

= 5 *1 *0.16807

= 0.84035 = 84.0%

zheka24 [161]3 years ago

3 0

If there are no failures in 5 trials, then there are 5 successes.

The probability of r successes in n trials is

$C(n, r)p^r(1-p)^{n-r}$ where p is the probability of success, n is the number of trials, and r is the number of successes. The C(n, r) is the number of combinations of n things taken r at a time, sometimes written $_nC_r$ .

The probability you want is 0.00243 = 0.243% = 0.2% (rounded).

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Jorge has 105 markers. 68 of the markers were dried and thrown out. How many working markers does jorge now have?

Amanda [17]

Answer:43

Step-by-step explanation:

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3 years ago

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NNADVOKAT [17]

Answer:

The statement $\lnot P \land P \rightarrow Q \rightarrow\lnot Q\lor Q$ is a tautology.

Step-by-step explanation:

We have the following statement $\lnot P \land P \rightarrow Q \rightarrow\lnot Q\lor Q$

A truth table shows how the truth or falsity of a compound statement depends on the truth or falsity of the simple statements from which it's constructed.

The simple statements from the statement given are:

$\lnot P$ , $\lnot Q$ , $\lnot P \land P$ , $\lnot P \land P \rightarrow Q$ , and $\lnot Q \lor Q$ with these you can construct the following truth table.