统计与概率
数据分析、概率分布、假设检验与统计方法。
-
an ice cream store sells 4 drinks, in 4 sizes, and 5 flavors. in how ma…
\(80\)
-
a popular brand of pen is available in 13 colors and 2 writing tips. ho…
\(26\)
-
workers (in millions) by occupation for the u.s. natural resources, con…
83. Approximately 0.091 84. Approximately 0.851 85. Approximately 0.202 86. Approximately 0.876 (Note: Exact fractions can also be used, e.g., 83: $\frac{67}{734}$)
-
the line plot shows the number of books 12 students read during the sum…
Range: 12, Mean: 5, Median: 4.5
-
this scatterplot shows a comparison of the number of gallons of gas use…
Data points are collected from several vehicles that average 10 miles to the gallon and added to the scatterplot; The points \((1,30)\), \((3,50)\), and \((5,100)\) are removed fr…
-
fill in the blank 50 points an optometrist surveyed a school with 484 s…
10% ### Second Sub - Question: Percentage of Girls Who Never Wear Glasses
-
use the given data set to complete parts (a) through (c) below. (use α …
\(r\approx0.816\)
-
the table below shows the educational attainment of a country’s populat…
\(\frac{1}{4}\)
-
use the given data set to complete parts (a) through (c) below. (use α …
D.
-
the table shows the number, expressed in millions, of citizens who move…
\(0.38\)
-
each graph shows a set of residuals for a different set of data points.…
The second and fourth residual plots.
-
the table shows the distribution, by age and gender, of the 27.7 millio…
\(0.16\)
-
a single die is rolled twice. the 36 equally-likely outcomes are shown …
\(0\)
-
students were asked how many movies they watched in february. which sta…
Half of the students watched between 1 and 6 movies.
-
25. what was the legal age for boys and girls to marry with parental pe…
Arts - Literature
-
a fair coin is tossed three times in succession. the set of equally lik…
\(\frac{1}{8}\)
-
you are dealt one card from a standard 52-card deck. find the probabili…
\(\frac{6}{13}\)
-
you are dealt one card from a standard 52-card deck. find the probabili…
\(\frac{1}{13}\)
-
a 4-sided die is rolled. the set of equally likely outcomes is {1,2,3,4…
\(1\)
-
a 12 - sided die is rolled. the set of equally likely outcomes is {1,2,…
\(\frac{5}{12}\)
-
the scatterplot shows data collected from 15 middle school boys regardi…
\(m=\frac{1}{5}\)
-
a group of campers is going to occupy 4 campsites at a campground. ther…
\(57120\)
-
from a club of 20 people, in how many ways can a group of six members b…
\(38760\)
-
solve by a method of your choice. a medical researcher needs 9 people t…
\(2002\)
-
in how many ways can a committee of five democrats and five republicans…
3136
-
you volunteer to help drive children at a charity event to the zoo, but…
\(8008\)
-
1. $y_1 + y_2 + y_3 + y_4 + y_5 + y_6 + y_7 + y_8$ (a) $sum_{i=8}^1 y$ …
B. \(\sum_{i = 1}^{8}Y_i\)
-
use the formula for $_{n}c_{r}$ to evaluate the given expression. $_{20…
\(4845\)
-
use the formula for $_{n}c_{r}$ to evaluate the given expression. $_{8}…
\(8\)
-
guided notes: adding details learning target i can add meaningful detai…
Part 1: 1. a. I eat breakfast every morning. 2. a. She walks to school quickly. 3. a. They watch movies at the cinema. Part 2: 1. a. The music plays loudly. 2. a. We sit in the cl…
-
in how many ways can the digits in the number 9,551,111 be arranged? □ …
\(105\)
-
in how many distinct ways can the letters of the word reader be arrange…
\(180\)
-
in a race in which eight automobiles are entered and there are no ties,…
\(336\)
-
a club with seventeen members is to choose three officers: president, v…
\(4080\)
-
use the formula for $_{n}p_{r}$ to evaluate the following expression. $…
\(40320\)
-
use the formula for $_np_r$ to evaluate the following expression. $_8p_…
\(336\)
-
what does \sequence of events\ mean? the tone of the narrative or essay…
the order of the narrative or essay
-
a camp counselor and eight campers are to be seated along a picnic benc…
\(5040\)
-
a camp counselor and eight campers are to be seated along a picnic benc…
\(720\)
-
there are 9 performers who will present their comedy acts this weekend …
\(40320\)
-
the standardized math scores for tenth graders at a particular school a…
44.0%
-
there are seven performers who will present their comedy acts this week…
\(5040\)
-
suppose x is a normally distributed random variable with mean μ = 0 and…
99.04% (the option with 99.04%)
-
discrete or continuous? 9. discrete or continuous? explain. iara is des…
- 9. Discrete. - 10. Continuous.
-
name: rockin’ root words directions: read each sentence to determine th…
1. b) breathe 2. a) sound 3. c) sea 4. d) build 5. b) see 6. d) star 7. a) write 8. a) say 9. c) made 10. b) carry
-
select all of the statements about a normal distribution that are true.…
The true statements are: - The graph is symmetric about the mean. - The curve is created using the mean and the standard deviation of the data. - 34% of the data is within 1 stand…
-
why does situational and dramatic irony often contribute to the develop…
They cause a reader to think beyond the surface level and their own expectations.
-
instructions read the question carefully and select the best answer. wh…
C. noun | a gift
-
for earth day, the environmental club tracked the number of seeds plant…
31
-
what is the difference between connotation and denotation? (1 point) co…
B. Connotation is the associations attached to a word, and denotation is a word's literal meaning.
-
after taking a job as a delivery driver, malcolm soon found out that th…
Every road was connected, and each was harder to travel than the one before it.
-
question 17 (4 points) a school is going to offer a new class next year…
The poll does not clearly indicate the majority’s preference because the confidence intervals (ranges considering margin of error) for the two classes' preferences overlap. The ra…
-
21. the government of north carolina has decided to build a new bridge …
C. Fiscal Policy
-
question 16 (4 points) listen select all of the values for the populati…
The plausible values are 105 cm, 87 cm, 113 cm. So the selected options are: - 105 cm - 87 cm - 113 cm
-
while a news story might be published as a joke or satire not meant to …
True
-
what is the most likely reason an author would use fewer hyperboles in …
B. The text has a serious tone.
-
9. choose the verb below that is not parallel to the other verbs. * wal…
Q9: swarm Q10: its effect Q11: The poster was meant to appear, from a distance, like a waterfall.
-
13.all of the following are examples of government fees a person might …
B. Taxes you pay on your income ### Question 14
-
indirect distribution channels use _______ to sell their products to th…
middlemen
-
the table models the balance of a bank account a(t), in dollars, for a …
The x - intercept is given by the ordered pair \((3,0)\). This means that on day 3, the bank account has a balance of \(\$0\).
-
click on the quiz information link on the left side of the screen to ac…
The z - value is - 0.67. There is not enough evidence to reject the claim. (But among the given options, the correct option with the right logic (failing to reject) is the one wit…
-
the following tables give information about the weekly number of hambur…
3 and 4 only
-
9. the reason is that many left class early. * 1 point yes no 10. its c…
9. Yes 10. No
-
a password contains eight digits, such as 17466780. how many different …
\(100000000\)
-
a stock can go up, go down, or stay unchanged. how many possibilities a…
\(19683\)
-
how many different arrangements of 3 letters can be formed if the first…
\(1352\)
-
license plates in a particular state display 2 letters followed by 4 nu…
\(6760000\)
-
what is value engineering? substituting high-quality components with lo…
Substituting high-quality components with low-cost components that still meet the product's lifetime duration and basic purpose
-
the local seven - digit telephone numbers in city a have 024 as the fir…
10000
-
which are two examples of direct distribution channels? wholesaler sale…
E-commerce sales, Door-to-door sales
-
the average grade on a test is 87.5%. the grades on the test have a var…
81.5% to 93.5%
-
in a different plan for area codes, the first digit could be any number…
108
-
this table shows the value of a computer as a function of time elapsed …
75
-
you are taking a multiple-choice test that has 5 questions. each of the…
1024
-
a person can order a new car with a choice of 10 possible colors, with …
160
-
a high school had 1,350 students in 2015. the function s(x) = 1,350(1.0…
A. 250
-
there are three highways from city a to city b, two highways from city …
\(12\)
-
shoppers in a large shopping mall are categorized as male or female, ov…
\(8\)
-
this table shows the height, in inches, of a candle x minutes after it …
B. 6.6 inches
-
lisa has scored 72, 65, 87, 60, and 59 on her previous five tests. what…
89
-
a sales representative can take one of 3 different routes from city b t…
21
-
a restaurant offers 9 appetizers and 10 main courses. in how many ways …
\(90\)
-
100 people were asked if they liked math, science, or social studies. e…
32 ### Part B:
-
select the correct answer which statement best defines a phoneme? a. it…
A. It is the smallest unit of sound.
-
the weight of a puppy was monitored for the first year of its life. the…
A. The puppy weighed about 400 grams at birth.
-
2 fill in the blank 50 points use the venn diagram to answer the questi…
86 ### Part B: People who like Country
-
question 15 (4 points) a doctor wants to survey his patients to find ou…
Assign each patient a number and use a random number generator to select the patients.
-
karen dropped a ball from different heights. this table shows the heigh…
A. 0.90
-
homophones are words that have exactly the same meaning have completely…
sound the same but have different meanings
-
100 people were asked if they liked math, science, or social studies. e…
\(\frac{57}{100}\) ### Part F
-
the data shows the number of books borrowed from the library each schoo…
Minimum value: 26 Lower quartile: 35 Median: 39 Upper quartile: 45 Maximum value: 52
-
question 20 of 25 there are 4 milligrams of a radioactive substance in …
D. Graph D
-
fill in the blank 1 point find the part 84% of 250 is what number? type…
\(210\)
-
read the excerpt from a student’s argumentative essay students at glenm…
C. Without proof of challenging courses, colleges might disregard our transcripts.
-
fill in the blank 1 point find the part 64% of 250 is what number? fill…
For \(64\%\) of \(250\): \(160\) For \(54\) is \(60\%\) of what number: \(90\)
-
5. what does the term \waggish\ most clearly mean as used in paragraph …
C. humorous
-
which of these best strengthens a factual argument? ○ descriptions from…
D. statistics and examples from reliable references
-
number of social media posts vs. gpa brent is trying to figure out the …
The linear function is \( y=-0.01x + 4 \) (or similar with the correct slope). The slope represents the average decrease in GPA (by 0.01) for each additional social media post.
-
the probability distribution of the number of people entering a store e…
85.0
-
question 9 (4 points) a researcher is studying whether being a smoker c…
- Method A: Observational Study - Method B: Experiment - Method C: Survey - Most reliable: Method B (Experiment)