Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
-
santiago buys a container of milk to make atole. the cups of milk left …
$y=-4x+16$
-
inferring from a ratio mr. rodriguez asked 60 randomly chosen students …
Yes, Mr. Rodriguez made a reasonable inference. 20% of the randomly selected 60 students chose science fiction, and applying this proportion to the 150 total students gives $0.2 \…
-
name armani: t date 1. solve using a tape diagram. a. $\frac{1}{4}$ of …
a. 6 b. 12 c. 12 d. 6 e. 21 f. 36 g. $10\frac{1}{3}$ h. 8 i. $6\frac{1}{4}$ j. 15
-
multiple choice question a frequency distribution table shows the numbe…
Frequency is plotted on the vertical axis and the class midpoint is plotted on the horizontal axis.
-
multiple select question select all that apply which of the following c…
- The shape of the distribution. - The approximate number of observations. - The spread of the data.
-
multiple choice question which of the following operations is true rega…
A. The relative frequency is found by dividing the class frequencies by the total number of observations.
-
5 of 10 concepts completedmultiple choice questionwhich of the followin…
It can show the total number of observations less than a particular class' upper limit.
-
multiple choice question which one of the following is true regarding r…
Raw data are simply a listing of data before summarizing it.
-
7. find the missing values in the ratio table. then write the equivalen…
Missing value: 80 Equivalent ratios: $20:\frac{1}{6}$, $80:\frac{2}{3}$, $10:\frac{1}{12}$, $90:\frac{3}{4}$ (all simplify to $120:1$)
-
multiple select question select all that apply which of the following a…
- The percentage of observations in each class is provided. - No observation can fit into more than one class. - They can be used for quantitative data. - They can be used for qua…
-
multiple choice question in a frequency polygon the points are plotted …
class midpoints
-
ordering question click and drag on elements in order place the followi…
1. Decide on the number of classes. 2. Determine the class interval. 3. Set individual class limits. 4. Tally the number of observations in each class.
-
4. the new vigo the vampire hunter novel is 520 pages. skyler has read …
a. Ramon reads faster. b. Approximately 16.77 hours (or exactly $\frac{520}{31}$ hours). Ramon's reading rate is 31 pages per hour, so dividing the total 520 pages by this rate gi…
-
multiple choice question which of the following features is not part of…
The frequency of occurrence of a nominal variable.
-
solve problems involving inferences and sample size and write about the…
Most students in the school would like to have more laptops available in the library.
-
multiple select question select all that apply which of the following a…
A. Use classes and frequencies to organize data C. Organize raw data D. It provides the tally for each class.
-
5. a bag contains: • 3 blue marbles • 4 red marbles • 11 green marbles …
1. The experimental probability of drawing a blue marble is $\frac{11}{45}$ (or approximately 0.244) 2. The experimental probability of both coins landing on tails is $\frac{13}{5…
-
calories 20 □ 10 90 miles $\frac{1}{6}$ $\frac{2}{3}$ □ □ the equivalen…
The missing values are: - Calories for $\frac{2}{3}$ miles: $80$ - Miles for 10 calories: $\frac{1}{12}$ - Miles for 90 calories: $\frac{3}{4}$ Filled table pairs: $80:\frac{2}{3}…
-
multiple choice question suppose that the miles per gallon for 80 cars …
0.20
-
multiple choice question the mode of a set of data is _______. ○ the va…
the value or values that occur most often
-
multiple select question select all that apply which of the following a…
A. Raw data can be either qualitative or quantitative. B. When the data is in its original form it is referred to as raw data.
-
multiple choice question a relative frequency distribution shows: ○ the…
the fraction or percentage of observations in each class interval
-
multiple select question select all that apply which of the following w…
A. Age of students in a business statistics course. B. State of residence of students in a business statistics course. C. Majors of students in a business statistics course. D. Ge…
-
multiple choice question what is the final step in creating a frequency…
Count the number of observations in each class.
-
multiple choice question which one of the following is not a characteri…
It summarizes qualitative data.
-
fill in the blank question the ______ of a set of data is the value or …
mode
-
jada knit a total of 15 centimeters of scarf over 3 nights. how many ni…
19 nights
-
multiple choice question which of the following is a feature of a relat…
The sum of the relative frequencies must be one (assuming no rounding errors).
-
lorenzo jarred 15 liters of jam after 5 days. how much jam did lorenzo …
30 liters
-
multiple select question select all that apply which of the following a…
A. They can be used for quantitative data. B. No observation can fit into more than one class. C. They can be used for qualitative data.
-
identify whether the table given below is a frequency table or a freque…
This is a frequency table.
-
name:date: february 10, 2016 period: 3/4/4bassignment - probability, da…
$\frac{1}{9}$
-
norma took a total of 12 quizzes over the course of 3 weeks. how many w…
10 weeks
-
2 look at the example. suppose only 5 classrooms share 4 packages. how …
Each classroom would get $\frac{4}{5}$ of a package. The model would show 4 total packages split equally into 5 parts (each classroom's share), and the answer is the reciprocal of…
-
larry bought 15 postcards during 3 days of vacation. after 4 days of va…
20 postcards
-
aisha knit a total of 12 centimeters of scarf over 3 nights. how many n…
4 nights
-
ayana learned a total of 6 appetizer recipes over the course of 3 weeks…
18 appetizer recipes
-
chapter 2 - target practice file home insert share page layout formulas…
## Corrected Cut-Offs: | Metric | Ping Pong | Crumpled Paper | |--------------|-----------|----------------| | IQR-Low | -8 | -3 | | IQR-High | 8 | 5 | | SD-Low | -4.7159 | -1.769…
-
practice: ratios and ratio tablescalories 20 □ 10 90miles $\frac{1}{6}$…
The completed ratio table and equivalent ratios are: Calories: $80$; Miles: $\frac{1}{12}$, $\frac{3}{4}$ Equivalent ratios: $20:\frac{1}{6}$, $80:\frac{2}{3}$, $10:\frac{1}{12}$,…
-
11. caleb paid $4.50 for 12 bagels. describe a unit price for bagels th…
Any unit price greater than $0.375 per bagel, for example, $0.40 per bagel (or $0.50 per bagel, $0.38 per bagel, etc.) is a valid answer.
-
2 check my work wachesaw manufacturing incorporated produced the follow…
a. 4 b. 1.5 c. 25
-
wachesaw manufacturing incorporated produced the following number of un…
a. 4 b. 1.5
-
bridgette read a total of 12 books over 2 months. after belonging to th…
18 books
-
akira spent 6 minutes on the phone while routing 2 phone calls. in all,…
3 phone calls
-
multiply. try using the cross-cancel strategy to simplify the problem. …
8
-
all year 3. marli gets to choose one sweet treat and one salty treat fr…
$\frac{1}{9}$ --- ### Problem 5
-
jackie took a total of 8 quizzes over the course of 2 weeks. after atte…
12 quizzes
-
the equivalent ratios are $8: \\frac{1}{3}$, d $4:\\frac{1}{6}$ $\\bold…
$12:\frac{1}{2}$ (Note: Any ratio where the first term is 24 times the second term is valid, e.g., $24:1$, $12:\frac{1}{2}$, $3:\frac{1}{8}$)
-
dillon walked a total of 6 kilometers by making 3 trips to school. how …
10 trips
-
lesson 18 | session 2 3 nodin makes soap sculptures of sea turtles. eac…
1. Number of sea turtles: 8 2. Value of $k$: $-18$ 3. Cost of each postcard: $\$0.70$
-
two thousand one hundred frequent business travelers were asked which m…
| City | Frequency | Relative Frequency | |---------------|-----------|--------------------| | Indianapolis | 115 | 0.055 | | Saint Louis | 400 | 0.190 | | Chicago | 1365 | 0.650 …
-
practice: ratios and ratio tables6. find the missing values in the rati…
### Completed Ratio Table: | Meters | 8 | 4 | 6 | 10 | |--------|---|---|---|----| | Minutes | $\frac{1}{3}$ | $\frac{1}{6}$ | $\frac{1}{4}$ | $\frac{5}{12}$ | ### Equivalent Rati…
-
however, other researchers in this field have questioned these findings…
Learning another language is **beneficial** in several ways. **Some studies** suggest it can help complete brain tasks and **delay cognitive decline**, decreasing the threat of Al…
-
soon after lincolns election, several southern states decided to secede…
The state withdraws from the country.
-
10. the houck family and roberts family took trains for their family va…
The Roberts family's train is traveling faster, by 1 mile per hour.
-
summarizing: informational text — quiz — level h this diagram compares …
Similar experiments have produced different results, so more are needed to link bilingualism and brain function.
-
13. -/1 points find all the zeros of the function. when there is an ext…
$x=4, \frac{1}{3}+i, \frac{1}{3}-i$ --- ### Second Function: $g(x) = x^5 - 8x^4 + 30x^3 - 68x^2 + 88x - 48$
-
today 2. what is the probability of flipping three coins one time and e…
1. The probability of flipping three tails is $\frac{1}{8}$ 2. The probability of spinning a 5 and rolling a 5 is $\frac{1}{36}$
-
2. what is the probability of flipping three coins one time and each co…
2. $\frac{1}{8}$ 4. $\frac{1}{36}$
-
multiple select question select all that apply which of the following a…
- It has all the properties of interval-level data. - The zero point of the data is meaningful. - The ratio between two measures is meaningful.
-
select all that apply which three of the following are not proper and e…
- Use samples that represent only a desired part of a population. - Report only those statistics that support his conclusions. - Remove outliers that bias the data too far in one …
-
multiple select question select all that apply which of the following e…
A. The median price of a house in Detroit. B. The typical genre of music played on KCFR.
-
multiple choice question what level of data is represented by the ages …
Ratio
-
true or false question statistics knowledge is necessary to successfull…
True
-
multiple choice question which of the following best describes interval…
The distance between values is a known unit of measure.
-
multiple choice question which of the following best describes the role…
C. The statistician should strive to present analysis with clarity, honesty, and integrity.
-
multiple choice question which of the following is classified as ordina…
A. Someone's ranking of their three favorite foods.
-
use efficient methods in a photography club, about 48% of the members a…
First, round 48% to 50% (or $\frac{1}{2}$), a simple fraction for mental math. Round 26 (the number of girls) to itself (or 25 for simplicity). Since 50% means half the total club…
-
three different options for school lunch were offered on friday. the ta…
Total lunches sold: 300 Total money earned: $\$1050$
-
name: 7-7 additional practice in 1-3, solve the rate problems. 1. jason…
Completed table values: - Time = 1 hour: Distance = 50 miles - Distance = 300 miles: Time = 6 hours Final time to travel 300 miles: 6 hours
-
the number of sixth grade students accounts for 35% of the total number…
700 students
-
multiple choice question the nominal level of data describes what type …
Observations of a qualitative variable that can only be classified and counted.
-
the table shows the number of minutes tim has for lunch and study hall.…
500 minutes
-
multiple select question select all that apply which of the following a…
- The ratio between two measures is meaningful. - The zero point of the data is meaningful. - It has all the properties of interval-level data.
-
... or those in favor of slavery will ensure that it is spread to the e…
1. A house divided against itself cannot stand. I believe this government cannot endure permanently, half slave, and half free. → The United States cannot survive forever if the c…
-
select all that apply which of the following are the four levels of mea…
- Nominal-level - Ratio-level - Ordinal-level - Interval level
-
melcher used 24% of the memory card on his digital camera while taking …
400
-
multiple choice question which of the following variables is recorded a…
A. A man's shoe size.
-
multiple choice question identify which one of the following is a conti…
The average weight of apples in a box at the market.
-
of the students in the marching band, 55% plan to go to the school danc…
200 students
-
7. the table shows the options zoes mother has for buying tickets to an…
The 6-pack of Student Tickets has the lesser cost per student ticket, with a cost of $21.00 per ticket compared to $21.50 for the individual ticket.
-
multiple choice question which one of the following are properties of o…
B. The data can be ranked or counted.
-
action movies make up 25% of saras dvd collection. if she has 16 action…
64 DVDs
-
select all that apply which of the following are attributes of a discre…
- It can assume only certain values within a range. - It can be used to count items. - There are gaps between the values of this variable.
-
multiple select question select all that apply which of the following e…
- The median price of a house in Detroit. - The typical genre of music played on KCFR.
-
multiple choice question which of the following represents data recorde…
Brand of newly purchased TV.
-
multiple choice question what are the two types of quantitative variabl…
Discrete and Continuous.
-
multiple choice question which level of data gives the most information…
A. Ratio
-
select all that apply identify all of the following items which are qua…
- The miles per gallon for a particular model of car. - The weight of a Siamese cat.
-
select all that apply which of the following are attributes of a contin…
- It is typically the result of measuring something. - It can take on any value within a range of values. - There are no required gaps between values.
-
multiple select question select all that apply which of the following a…
- Estimating the average weight in a box of apples by measuring the weight of five apples. - Counting the blue candies in a package of M&M's as a way to estimate the proportion of…
-
3 6.5.5 practice 3 calculate the value of each expression by writing th…
$0.0002$
-
multiple select question select all that apply which of the following a…
A. The number of customers using an ATM on a given day. B. The number of cars for sale on a used car lot.
-
3 6.5.5 practice 3 calculate the value of each expression by writing th…
$0.0002$
-
multiple choice question which is the best definition of a quantitative…
C. A variable that can be reported numerically
-
multiple choice question which one of the following is a population in …
C. All of the automobiles sold in Canada in 2016.
-
multiple choice question what is descriptive statistics? methods of org…
Methods of organizing, summarizing, and presenting data in an informative way.
-
what is inferential statistics?○ methods of calculating summary statist…
Methods of estimating a property of a population based on a sample.
-
sociability and sometimes off-color humor. what is the meaning of the a…
characterized by joviality and enjoyment of food and drink
-
true or false question descriptive statistics uses the data to make inf…
False