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3 years ago

I need help with this logic puzzle,

1 answer:

3 0

I cannot reach a meaningful solution from the given information. To prove that S was always true, you would have to prove that N was always false. To prove that N was always false you would have to prove that L was always false. For the statement (L ^ T) -> K to be true, you only need K to be true, so L can be either true or false.
Therefore, because of the aforementioned knowledge, I do not believe that you can prove S to be true.

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A survey of an urban university (population of 25,450) showed that 870 of 1,100 students sampled supported a fee increase to fun

Katen [24]

Answer:

95% confidence interval for the proportion of students supporting the fee increase is [0.767, 0.815]. Option C

Step-by-step explanation:

The confidence interval for a proportion is given as [p +/- margin of error (E)]

p is sample proportion = 870/1,100 = 0.791

n is sample size = 1,100

confidence level (C) = 95% = 0.95

significance level = 1 - C = 1 - 0.95 = 0.05 = 5%

critical value (z) at 5% significance level is 1.96.

E = z × sqrt[p(1-p) ÷ n] = 1.96 × sqrt[0.791(1-0.791) ÷ 1,100] = 1.96 × 0.0123 = 0.024

Lower limit of proportion = p - E = 0.791 - 0.024 = 0.767

Upper limit of proportion = p + E = 0.791 + 0.024 = 0.815

95% confidence interval for the proportion of students supporting the fee increase is between a lower limit of 0.767 and an upper limit of 0.815.

5 0

2 years ago

How do I solve y+5x=2;-1,0,1 ?

vfiekz [6]

Plug is the number try one and see if it equals and solve for y get y on one side

5 0

2 years ago

Solve a Quadratic EquationUse the following equation to answer the questions:3x2 - 8x + 1 = 314 1 pointWhat is the discriminant?

emmainna [20.7K]

Δ=88

1) Using the Quadratic Equation to Solve

3x²-8x+1=3

3x²-8x+1-3=3-3

3x² -8x -2=0

2)Let's find the discriminant

Δ= (-8)²-4(3)(-2)

Δ=64 -4(3)(-2)

Δ=88

8 0

1 year ago

In the last several weeks, 18 days saw rain and 29 days saw high winds. in the same time period 7 days saw both rain and high wi

liq [111]

Answer:

40 days saw either rain or high winds

Step-by-step explanation:

We solve this question using Venn sets.

I am going to say that:

Set A: Rain

Set B: High winds.

18 days saw rain

This means that $A = 18$

29 days saw high winds

This means that $B = 29$

7 days saw both rain and high winds.

This means that $A \cap B = 7$

How many days saw either rain or high winds?

This is

$A \cup B = A + B - A \cap B$

$A \cup B = 18 + 29 - 7 = 40$

40 days saw either rain or high winds

5 0

2 years ago

Are extraneous solution always negative numbers

lyudmila [28]

Answer: i would say no there not always negative

3 0

3 years ago

Read 2 more answers