Gramática; Actividad A A. Indicativo, subjuntivo o infinitivo. En búsqueda de trabajo en Buenos Aires. Lucy writes a text message to her parents from Argentina where she works as an intern at an international company. First, read her email message. Then, decide whether the verb in parenthesis should be in the infinitive, indicative, or subjunctive. Type the correct form of the verb in the space provided. [Note: If you cannot insert an accent, you will not lose points.] (2 pts. each: 1 pt. for correct use of infinitive, indicative or subjunctive, 1 pt. for correct conjugation; 6 pts. total)   MODELO: Lucy necesita hablar con la directora para que le escriba (dar / tener / escribir) una carta de recomendación.  Queridos papás:  ¡Estoy muy contenta aquí en Buenos Aires! Mis amigos y yo normalmente viajamos cuando tenemos vacaciones. Es por eso, que yo necesito (1) [blank1] (comprar / buscar / ser) un trabajo de tiempo completo en Buenos Aires. Es verdad que yo (2) [blank2] (vivir / ascender / necesitar) información de un puesto de trabajo dinámico que me permita viajar. Y antes de que (3) [blank3] (conseguir / comprar / dar) un trabajo de tiempo completo es necesario que lea los anuncios clasificados todos los días en internet para encontrar mi trabajo ideal.  ¡Me siento feliz!  ¡Un abrazo! Con cariño, Lucy  

1. When measuring weight to the nearest pound, what are the real limits for a score of  pounds? (1pt each) [A] and [B] 2. When measuring weights to the nearest pounds, what are the real limits for a score of  pounds?  [C] and [D]

Suppose we take a sample of seven households from a low- to moderate-income neighborhood and collect information on their incomes and food expenditures for the past month. The information obtained (in hundreds of dollars) is shown below (3 pts each).  Income (X) Food Expenditure (Y) 35 9 49 15 21 7 39 11 15 5 28 8 25 9 a. Find the mean and standard deviation of X. b. Find the mean and standard deviation of Y.  c. Calculate the correlation between income and food expenditure.  d. Suppose you wish to predict food expenditure (Y) from income (X) using a best-fitting straight line. Find the intercept and slope of the regression line for these data and write the equation for the line represented by these coefficients. e. Interpret the slope and intercept of the regression line you found in part (d).    f. Predict the expenditure, on average, if a household income is 39. g. Calculate the coefficient of determination. 

Find the value of z, say , such that the following probability statements are true: (2 pts each) a. P(z < z0) = .8925      [a] b. P(-z0 < z < z0) = .99      [b] c.  P(z > z0) = .2420      [c] d.  P(z < z0) = .0643      [d]

Full Scale (Fractional)

31)     2  3/4″

Identifying Units

Match the lines 16-20 with their corresponding measurement using a 1/4” = 1” scale. (Quarter Size)

Engineering Scale

Drawing Lines in Scale