Answer:
Step-by-step explanation:
Assuming they removed the jokers there are 52 cards in a deck and 13 hearts
You can calculate the odds of something by multiplying the odds together, because you don't put back the card you drew you have to subtract 1 from both the numerator and denominator
Therefore the probability of pulling 3 cards that are all hearts are
Answer:
Since the values vary from 0.5 to 4.5, let's take 5 intervals of width 1 unit each
(Lower boundary is included, upper boundary is not)
Average
no. of --------> frequency
movies
_______ __________
0 - 1 --------------> 1
1 - 2 --------------> 5
2 - 3 --------------> 5
3 - 4 --------------> 2
4 - 5 --------------> 1
For frequencies, just count the data values in each interval
Answer:
Option C: n = 32; p^ = 0.4
Step-by-step explanation:
The normal curve can be used in this case if; np ≥ 10 or n(1 - p) ≥ 10
A) For n = 28 and p = 0.3;
np = 28 × 0.3 = 8.4 < 10
Thus, it can't be used.
B) For n = 28 and p = 0.9;
np = 28 × 0.9 = 25.2 > 10 Ok
n(1 - p) = 28(1 - 0.9) = 2.8 Not Ok
Thus, it can't be used
C) For n = 32 and p = 0.4
np = 32 × 0.4 = 12.8 > 10 Ok
n(1 - p) = 32(1 - 0.4) = 19.2 > 10 Ok
Thus, it can be used
D) For n = 32 and p = 0.2
np = 32 × 0.2 = 6.4 < 10 Not Ok
Thus it can't be used.
The hundreds that must be added to 69,000 to make 4,000,000 is 39.
<h3>What does division mean?</h3>
Division is a mathematical operation that involves dividing a number into equal parts using another number. The sign used to denote division is ÷.
<h3>How many hundreds must be added to 69,000 to make 4,000,000?</h3>
In order to determine the answer, divide 4,000,000 by 100,000: 4,000,000 / 100,0000 = 40.
Because 69,000 has already been ran, subtract 1 from 40. This gives 39.
To learn more about division, please check: brainly.com/question/13281206
Answer:
x = 5
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality
<u>Trigonometry</u>
[Right Triangles Only] Pythagorean Theorem: a² + b² = c²
- a is a leg
- b is another leg
- c is the hypotenuse
Step-by-step explanation:
<u>Step 1: Identify Variables</u>
Leg <em>a</em> = <em>x</em>
Leg <em>b</em> = 12
Hypotenuse <em>c</em> = 13
<u>Step 2: Solve for </u><em><u>x</u></em>
- Substitute in variables [Pythagorean Theorem]: x² + 12² = 13²
- Evaluate exponents: x² + 144 = 169
- [Subtraction Property of Equality] Subtract 144 on both sides: x² = 25
- [Equality Property] Square root both sides: x = 5