The first class in a relative frequency table is 50–59 and the corresponding relative frequency is 0.2. What does the 0.2 value indicate? Answer: 0.2 is equal to 1/5 or 20%, 0.2 indicates 20% of the data values are in this particular interval. 3. When you add the values 3, 5, 8, 12, and 20 and then divide by the number of values, the result is 9.6.
Significant Figures/Scientific Notation Question 1 How many significant figures are in the following values? a. 4.02 x 10-9 b. 0.008320 c. 6 x 105 d. 100.0 Question 2 How many significant figures are in the following values? a.
State the place value of the underlined digit in 6 953 742. A Hundreds C Ten thousands B Thousands D Hundred thousands ( 3. Round off 5 987 341 to the nearest hundred thousand. A 5.8 million C 6.0 million ( B 5.9 million D 6.1 million 4. Which of the following numbers, when rounded off to the nearest thousand, becomes 7 541 000?
Assuming that there are only two parties - Democrat and Republican, if two voters are randomly selected for a telephone survey, what is the probability that they one is a Democrat followed by a Republican? Round your answer to 4 decimal places. (References: example 4 page 152, end of section exercises 19 – 21 page 156 - 157) (2 points) b. You are dealt 2 cards from a shuffled deck of 52 cards, without replacement. What is the probability that the first card is a King and the second card is a Queen?
I. IQ Section（5X2=10 points） 1. Choose the next item of the sequence. 1, 4, 5, 2, 5, 6, 3, 6, ___ A. 2 B. 5 C. 7 D.9 E. 12 2.
A) x(3w+y) B) x(w+3y) C) 4x(3w+y) D) 4x(w+3y) 15) If x-7=2y and x=5+3y what is the value of y? A)-5 B) –2 C) 2 D) 5 16) If e+f=-1 then (e+f)²
D. the proportion in a survey that favor a certain opinion. 5. Fill in the blank: Central Limit Theorem allows us to compute probabilities on ___________ using the standard Normal table provided the sample size of the random sample is sufficiently large. A. x B. μ C. s D. sample measurements. 6.
Pythagorean Triples The numbers 3, 4, and 5 are called Pythagorean triples since 32 + 42 = 52. The numbers 5, 12, and 13 are also Pythagorean triples since 52 + 122 = 132. Can you find any other Pythagorean triples? Actually, there is a set of formulas that will generate an infinite number of Pythagorean triples. Research the topic of Pythagorean triples and write a brief report on the subject.
a) 3x + 2y = 4 and x – 5y = 7 b) 3x – 5y = –11 and 5x + y = 19 3. Find the equation of the line parallel to 4x + y = 5 and passing through the point ( 8 , – 1 ) Find the equation of the line containing ( – 2 , 5 ) and perpendicular to the line containing the points ( 2 , 8 ) and ( 5 , – 1 ). Find an equation of the line perpendicular to the line 6x – 2y = – 5 and containing the point ( – 1 , – 2 ). 4. 5.
Short Answers: 5. What two things must you normally specify in a variable declaration? * the variable type and identifier. 6. What value is stored in uninitialized variables?